gvsig-scripting / org.gvsig.scripting / trunk / org.gvsig.scripting / org.gvsig.scripting.lib / org.gvsig.scripting.lib.impl / src / main / java / org / gvsig / scripting / impl / DefaultScriptingScript.java @ 669
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package org.gvsig.scripting.impl; |
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|
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import java.io.File; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.util.List; |
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|
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import javax.script.Compilable; |
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import javax.script.CompiledScript; |
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import javax.script.Invocable; |
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import javax.script.ScriptEngine; |
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import javax.script.ScriptException; |
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|
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import org.apache.commons.io.FileUtils; |
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import org.apache.commons.io.FilenameUtils; |
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import org.apache.commons.io.IOUtils; |
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import org.apache.commons.lang3.StringUtils; |
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import org.apache.commons.lang3.exception.ExceptionUtils; |
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import org.gvsig.scripting.CompileErrorException; |
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import org.gvsig.scripting.ExecuteErrorException; |
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import org.gvsig.scripting.Main; |
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import org.gvsig.scripting.ScriptingBaseScript; |
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import org.gvsig.scripting.ScriptingFolder; |
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import org.gvsig.scripting.ScriptingManager; |
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import org.gvsig.scripting.ScriptingScript; |
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import org.gvsig.scripting.ScriptingUnit; |
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import org.gvsig.tools.dispose.Disposable; |
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import org.gvsig.tools.observer.Observer; |
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import org.gvsig.tools.observer.impl.DelegateWeakReferencingObservable; |
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import org.gvsig.tools.task.AbstractMonitorableTask; |
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import org.ini4j.Ini; |
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import org.python.core.PyException; |
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import org.python.core.PyString; |
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import org.python.core.PyTraceback; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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|
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public class DefaultScriptingScript extends AbstractScript implements |
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ScriptingScript { |
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|
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private static final Logger logger = LoggerFactory.getLogger(DefaultScriptingScript.class); |
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protected String langName; |
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protected String extension = null; |
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protected String librarySuffix = null; |
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protected ScriptEngine engine = null; |
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protected CompiledScript compiledCode;
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|
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private String code = null; |
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private String mainName = "main"; |
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private boolean saved; |
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private final DelegateWeakReferencingObservable delegatedObservable; |
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|
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protected DefaultScriptingScript(ScriptingFolder parent, String typename, ScriptingManager manager, String id) { |
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super(parent, typename, manager, id);
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this.setLangName("python"); |
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this.setSaved(true); |
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this.delegatedObservable = new DelegateWeakReferencingObservable(this); |
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} |
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|
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public DefaultScriptingScript(ScriptingFolder parent, ScriptingManager manager, String id) { |
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this(parent, ScriptingManager.UNIT_SCRIPT, manager, id);
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} |
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|
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public Object __getattr__(String name) { |
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ScriptEngine engine = this.getEngine();
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this.compile();
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return engine.get(name);
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} |
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public void __setattr__(String name, Object value) { |
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ScriptEngine engine = this.getEngine();
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this.compile();
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engine.put(name, value); |
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} |
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|
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public Object __call__() { |
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return this.run(); |
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} |
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|
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public Object __call__(Object[] args) { |
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return this.run(args); |
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} |
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|
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protected void notifyErrors(Exception exception, String command) { |
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this.delegatedObservable.notifyObservers(new BaseScriptingNotifycation( |
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this, BaseScriptingNotifycation.RUNTIME_ERROR_NOTIFICATION,
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command, exception)); |
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} |
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@Override
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public void setSaved(boolean saved) { |
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this.saved = saved;
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} |
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@Override
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public String getCode() { |
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if (this.code == null) { |
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File f = null; |
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try {
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f = this.getFileResource(this.extension); |
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this.code = FileUtils.readFileToString(f);
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} catch (IOException e) { |
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String fname = (f == null) ? "(null)" : f.getAbsolutePath(); |
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logger.warn("Can't load code from file '" + fname + "'."); |
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} |
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} |
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return this.code; |
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} |
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|
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@Override
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public void setCode(String code) { |
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this.code = code;
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this.engine = null; |
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this.compiledCode = null; |
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this.setSaved(false); |
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} |
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|
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@Override
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public String getLibrarySuffix() { |
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return this.librarySuffix; |
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} |
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|
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@Override
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public void setLibrarySuffix(String librarySuffix) { |
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this.librarySuffix = librarySuffix;
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} |
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public List<File> getLibFolders() { |
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List<File> folders = this.manager.getLibFolders(); |
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String suffix = this.getLibrarySuffix(); |
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if( suffix == null ) { |
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return folders;
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} |
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for( int i=0; i<folders.size(); i++) { |
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File folder = folders.get(i);
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File f = new File(folder.getParentFile(),folder.getName()+suffix); |
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if( f.exists() ) {
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folders.set(i, f); |
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} |
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} |
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return folders;
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} |
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protected String getCodeToInitializeEngine() { |
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String name = "org/gvsig/scripting/langs/"+this.getLangName().toLowerCase()+"/init.txt"; |
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try {
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InputStream template = this.getClass().getClassLoader().getResourceAsStream(name); |
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if( template == null ) { |
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return null; |
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} |
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List<String> lines = IOUtils.readLines(template); |
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return StringUtils.join(lines, "\n"); |
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} catch (Exception ex) { |
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logger.warn("Can't load code to initialize the script from '"+name+".",ex); |
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return null; |
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} |
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} |
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public ScriptEngine getEngine() {
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if (this.engine == null) { |
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ScriptEngine scriptEngine = this.manager.getEngineByLanguage(langName);
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if( "scala".equalsIgnoreCase(langName) ) { |
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try {
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// https://gist.github.com/takawitter/5479445
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Object settings = scriptEngine.getClass().getMethod("settings", new Class[0]).invoke(scriptEngine, new Object[0]); |
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settings.getClass().getMethod("processArgumentString", new Class[] { String.class }).invoke(settings, new String[] { "-usejavacp"}); |
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} catch(Throwable th) { |
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logger.warn("Can't initialice scala setting -usejavacp",th);
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} |
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} |
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scriptEngine.put("script", this); |
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scriptEngine.put("Main", Main.class);
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this.engine = scriptEngine;
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String code = this.getCodeToInitializeEngine(); |
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if (code != null) { |
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try {
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this.engine.eval(code);
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} catch (Exception ex) { |
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logger.warn("Can't initialize engine with the code:\n" + code, ex);
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} |
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} |
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} |
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return this.engine; |
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} |
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@Override
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protected void loadInf(Ini prefs) { |
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super.loadInf(prefs);
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this.setMainName((String) getInfValue(prefs, "Script", "main", "main")); |
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this.setLangName((String) getInfValue(prefs, "Script", "Lang",this.getLangName())); |
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this.setLibrarySuffix((String) getInfValue(prefs, "Script", "LibraryVersion",null)); |
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} |
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@Override
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public void load(ScriptingFolder folder, String id) { |
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this.setId(id);
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this.setParent(folder);
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String extension = FilenameUtils.getExtension(id);
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if( extension != null ) { |
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String language = this.manager.getLanguageOfExtension(extension); |
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if( language != null ) { |
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this.setLangName(language);
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} |
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this.setExtension(extension);
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} |
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File f = getFileResource(".inf"); |
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if (f.isFile()) {
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Ini prefs = null;
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try {
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prefs = new Ini(f);
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} catch (Exception e) { |
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logger.warn("Can't load 'inf' file '" + f.getAbsolutePath() + "'.", e); |
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} |
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loadInf(prefs); |
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} |
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this.setSaved(true); |
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} |
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@Override
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public void save() { |
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this.saveInfo();
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// Guardo el codigo en el fichero
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File fcode = this.getFileResource(this.getExtension()); |
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try {
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FileUtils.write(fcode, this.getCode());
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} catch (Exception e) { |
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logger.warn("Can't write code to file '" + fcode.getAbsolutePath() + "'.", e); |
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} |
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this.setSaved(true); |
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} |
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private void saveInfo() { |
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File f = getFileResource(".inf"); |
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if (!f.isFile()) {
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try {
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f.createNewFile(); |
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} catch (Exception e) { |
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logger.warn("Can't create 'inf' file '" + f.getAbsolutePath() + "'.", e); |
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} |
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} |
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Ini prefs = null;
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try {
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prefs = new Ini(f);
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} catch (Exception e) { |
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logger.warn("Can't load 'inf' file '" + f.getAbsolutePath() + "'.", e); |
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} |
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save(prefs); |
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} |
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@Override
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protected void save(Ini prefs) { |
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super.save(prefs);
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prefs.put("Script", "main", this.getMainName()); |
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prefs.put("Script", "Lang", this.getLangName()); |
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try {
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prefs.store(); |
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} catch (IOException e) { |
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String fname = (prefs.getFile() == null) ? "(null)" : prefs.getFile().getAbsolutePath(); |
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logger.warn("Can't save inf file (" + fname + ").", e); |
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} |
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|
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} |
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|
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@Override
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public String getLangName() { |
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return this.langName; |
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} |
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|
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protected void setLangName(final String langName) { |
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if( langName == null ) { |
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return;
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} |
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this.langName = langName;
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this.setExtension(this.manager.getExtensionOfLanguage(this.langName)); |
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} |
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|
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@Override
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public String[] getIconNames() { |
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return new String[]{ |
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"scripting_" + this.getLangName().toLowerCase(), |
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"scripting_" + this.getLangName().toLowerCase() + "_open" |
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}; |
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} |
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|
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@Override
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public String getMainName() { |
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return this.mainName; |
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} |
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|
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@Override
|
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public void setMainName(final String mainName) { |
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this.mainName = mainName;
|
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} |
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|
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public String getExtension() { |
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return this.extension; |
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} |
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|
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public void setExtension(final String extension) { |
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if (!extension.startsWith(".")) { |
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this.extension = "." + extension; |
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} else {
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this.extension = extension;
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} |
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} |
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|
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@Override
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public boolean isSaved() { |
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return this.saved; |
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} |
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|
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@Override
|
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public void addObserver(final Observer o) { |
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this.delegatedObservable.addObserver(o);
|
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} |
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|
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@Override
|
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public void deleteObserver(final Observer o) { |
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this.delegatedObservable.deleteObserver(o);
|
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} |
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|
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@Override
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public void deleteObservers() { |
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this.delegatedObservable.deleteObservers();
|
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} |
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|
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@Override
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public void put(final String name, final Object value) { |
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this.getEngine().put(name, value);
|
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} |
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|
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@Override
|
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public void compile() { |
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if (this.compiledCode == null) { |
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ScriptEngine engine = this.getEngine();
|
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if (engine instanceof Compilable) { |
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try {
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Compilable compilable = (Compilable) engine; |
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String code = this.getCode(); |
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if( "python".equalsIgnoreCase(this.getLangName()) ) { |
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// If a Unicode string with a coding declaration is passed to compile(),
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// a SyntaxError will be raised, but this is necessary to import from
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// another module, so we remove it.
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// http://bugs.jython.org/issue1696
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code = code.replaceFirst("^\\s*#([^:\\n]*)coding:","#$1 c-o-d-i-n-g:"); |
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} |
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this.compiledCode = compilable.compile(code);
|
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if( engine instanceof Invocable) { |
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this.compiledCode.eval();
|
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} |
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} catch (ScriptException e) {
|
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Object[] location = this.getLocation(e); |
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CompileErrorException ce = new CompileErrorException(
|
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e.getMessage(), |
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(File) location[0], |
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(int) location[1], |
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(int) location[2], |
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e |
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); |
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notifyErrors(ce, "compile");
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throw ce;
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} catch (Throwable e) { |
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CompileErrorException ce = new CompileErrorException(e.getMessage(), this.getScriptFile(), e); |
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notifyErrors(new Exception(e), "compile"); |
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throw ce;
|
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} |
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} else {
|
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String code = this.getCode(); |
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try {
|
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engine.eval(code); |
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} catch (ScriptException e) {
|
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Object[] location = this.getLocation(e); |
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CompileErrorException ce = new CompileErrorException(
|
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e.getMessage(), |
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(File) location[0], |
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(int) location[1], |
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(int) location[2], |
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e |
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); |
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notifyErrors(ce, "compile");
|
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throw ce;
|
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} |
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} |
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} |
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} |
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|
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public void addDisposable(Disposable disposable) { |
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//pass
|
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} |
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|
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/**
|
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* Run the main function of this script.
|
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* This method is created by familiarity when running the script from another script.
|
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* @return
|
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*/
|
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public Object main() { |
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return this.run(null); |
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} |
401 |
|
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/**
|
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* Run the main function of this script.
|
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* This method is created by familiarity when running the script from another script.
|
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* @return
|
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*/
|
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public Object main(Object... args) { |
408 |
return this.run(args); |
409 |
} |
410 |
|
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|
412 |
public Object run() { |
413 |
return this.run(null); |
414 |
} |
415 |
|
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@Override
|
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public Object run(Object args[]) { |
418 |
if( !this.isEnabled() ) { |
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System.err.printf("The script '"+this.getName()+"' is not enabled, see properties page to change.\n"); |
420 |
return null; |
421 |
} |
422 |
if (args == null) { |
423 |
args = new Object[]{}; |
424 |
} |
425 |
this.compile();
|
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return this.invokeFunction(this.getMainName(), args); |
427 |
} |
428 |
|
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@Override
|
430 |
public Object invokeFunction(final String name, Object args[]) { |
431 |
try {
|
432 |
if (this.getEngine() instanceof Invocable) { |
433 |
Invocable invocable = (Invocable) this.getEngine();
|
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this.compile();
|
435 |
if (args == null) { |
436 |
args = new Object[]{}; |
437 |
} |
438 |
return invocable.invokeFunction(name, args);
|
439 |
} else {
|
440 |
if (this.compiledCode != null) { |
441 |
Object x = this.compiledCode.eval(); |
442 |
if( x instanceof Main ) { |
443 |
return ((Main) x).main(args);
|
444 |
} else if(x instanceof Runnable) { |
445 |
((Runnable) x).run();
|
446 |
} |
447 |
} |
448 |
return null; |
449 |
} |
450 |
} catch (ScriptException e) {
|
451 |
Object[] location = this.getLocation(e); |
452 |
ExecuteErrorException ee = new ExecuteErrorException(
|
453 |
e.getMessage(), |
454 |
(File) location[0], |
455 |
(int) location[1], |
456 |
(int) location[2], |
457 |
e |
458 |
); |
459 |
notifyErrors(ee, "invoke");
|
460 |
throw ee;
|
461 |
|
462 |
} catch (Error | Exception e) { |
463 |
ExecuteErrorException ee = new ExecuteErrorException(e.getMessage(), this.getScriptFile(), e); |
464 |
notifyErrors(ee, "invoke");
|
465 |
throw ee;
|
466 |
} |
467 |
} |
468 |
|
469 |
@Override
|
470 |
public File getScriptFile() { |
471 |
return this.getFileResource(extension); |
472 |
} |
473 |
|
474 |
private Object[] getLocation(ScriptException e) { |
475 |
Throwable[] es = ExceptionUtils.getThrowables(e); |
476 |
Exception dbgex; // Para debug con mas comodidad |
477 |
for( Throwable t : es) { |
478 |
if( t instanceof PyException ) { |
479 |
try {
|
480 |
PyException pyex = (PyException)t; |
481 |
PyTraceback tb = pyex.traceback; |
482 |
if( tb!=null ) { |
483 |
while( tb.tb_next!=null ) { |
484 |
tb = (PyTraceback) tb.tb_next; |
485 |
} |
486 |
String s = tb.tb_frame.f_globals.__getitem__(new PyString("__file__")).asString(); |
487 |
if( s.endsWith("$py.class") ) { |
488 |
s = s.substring(0, s.length()-9) + ".py"; |
489 |
File resource = new File(s); |
490 |
return new Object[] { resource, tb.tb_lineno, 0}; |
491 |
} |
492 |
return new Object[] { this.getScriptFile(), tb.tb_lineno, 0}; |
493 |
} |
494 |
} catch(Exception ex) { |
495 |
// Pass
|
496 |
dbgex = ex; |
497 |
} |
498 |
} |
499 |
} |
500 |
int column = e.getColumnNumber();
|
501 |
if( column < 0 ) { |
502 |
column = 0;
|
503 |
} |
504 |
return new Object[] { this.getScriptFile(), e.getLineNumber(), column }; |
505 |
} |
506 |
|
507 |
|
508 |
@Override
|
509 |
public Object invokeMethod(final Object obj, final String name, Object[] args) |
510 |
throws NoSuchMethodException { |
511 |
|
512 |
if (this.getEngine() instanceof Invocable) { |
513 |
Invocable invocable = (Invocable) this.getEngine();
|
514 |
this.compile();
|
515 |
if (args == null) { |
516 |
args = new Object[]{}; |
517 |
} |
518 |
try {
|
519 |
return invocable.invokeMethod(obj, name, args);
|
520 |
} catch (ScriptException e) {
|
521 |
ExecuteErrorException ee = new ExecuteErrorException(e.getMessage(), this.getScriptFile(), e.getLineNumber(), e.getColumnNumber(), e); |
522 |
notifyErrors(ee, "invoke");
|
523 |
throw ee;
|
524 |
} catch (Throwable e) { |
525 |
ExecuteErrorException ee = new ExecuteErrorException(e.getMessage(), this.getScriptFile(), e); |
526 |
notifyErrors(ee, "invoke");
|
527 |
throw ee;
|
528 |
} |
529 |
} else {
|
530 |
return null; |
531 |
} |
532 |
} |
533 |
|
534 |
@Override
|
535 |
public File getResource(String filename) { |
536 |
return new File(this.getParent().getFile(), filename); |
537 |
} |
538 |
|
539 |
@Override
|
540 |
public String getMimeType() { |
541 |
return "text/"+ this.getLangName(); |
542 |
} |
543 |
|
544 |
class ScriptTask extends AbstractMonitorableTask { |
545 |
|
546 |
ScriptingBaseScript script = null;
|
547 |
Object[] args = null; |
548 |
|
549 |
protected ScriptTask(ScriptingBaseScript script, Object[] args) { |
550 |
super(script.getName(), false); |
551 |
this.args = args;
|
552 |
this.script = script;
|
553 |
this.script.put("task", this); |
554 |
this.script.put("taskStatus", this.getTaskStatus()); |
555 |
} |
556 |
|
557 |
@Override
|
558 |
public void run() { |
559 |
try {
|
560 |
console_println("Running script " + this.script.getName() + "."); |
561 |
script.run(this.args);
|
562 |
console_println("Script " + this.script.getName() + " terminated."); |
563 |
} catch (Throwable e) { |
564 |
console_println("Stript " + this.script.getName() + " aborted."); |
565 |
} finally {
|
566 |
this.taskStatus.terminate();
|
567 |
try {
|
568 |
Thread.sleep(3000); |
569 |
} catch (InterruptedException e) { |
570 |
// Ignore
|
571 |
} |
572 |
this.taskStatus.remove();
|
573 |
} |
574 |
} |
575 |
|
576 |
public void showTaskStatus() { |
577 |
this.taskStatus.add();
|
578 |
} |
579 |
} |
580 |
|
581 |
@Override
|
582 |
public void runAsTask(Object[] args) { |
583 |
if( !this.isEnabled() ) { |
584 |
System.err.printf("The script '"+this.getName()+"' is not enabled, see properties page to change.\n"); |
585 |
return;
|
586 |
} |
587 |
ScriptTask task = new ScriptTask(this, args); |
588 |
task.start(); |
589 |
} |
590 |
|
591 |
@Override
|
592 |
public boolean remove() { |
593 |
boolean r = true; |
594 |
File folder = this.getParent().getFile(); |
595 |
File f = new File(folder, this.getId() + ".inf"); |
596 |
try {
|
597 |
FileUtils.forceDelete(f); |
598 |
} catch (IOException e) { |
599 |
logger.warn("Can't remove inf file '" + f.getAbsolutePath() + "'.", e); |
600 |
r = false;
|
601 |
} |
602 |
try {
|
603 |
f = new File(folder, this.getId() + this.getExtension()); |
604 |
FileUtils.forceDelete(f); |
605 |
} catch (IOException e) { |
606 |
logger.warn("Can't remove code file '" + f.getAbsolutePath() + "'.", e); |
607 |
r = false;
|
608 |
} |
609 |
return r;
|
610 |
} |
611 |
|
612 |
@Override
|
613 |
public void create(ScriptingFolder folder, String id, String language) { |
614 |
this.setParent(folder);
|
615 |
this.setId(id);
|
616 |
if (language == null) { |
617 |
this.setLangName("python"); |
618 |
} else {
|
619 |
this.setLangName(language);
|
620 |
} |
621 |
this.setExtension(this.manager.getExtensionOfLanguage(getLangName())); |
622 |
|
623 |
File file = new File(folder.getFile(), id + ".inf"); |
624 |
try {
|
625 |
file.createNewFile(); |
626 |
} catch (IOException e) { |
627 |
logger.warn("Can't create file of the dialog in '" + file.getAbsolutePath() + "'.", e); |
628 |
} |
629 |
String template = this.getNewTemplate(); |
630 |
if( template != null ) { |
631 |
this.setCode(template);
|
632 |
} |
633 |
this.save();
|
634 |
} |
635 |
|
636 |
public String getNewTemplate() { |
637 |
String name = "org/gvsig/scripting/langs/"+this.getLangName().toLowerCase()+"/new_template.txt"; |
638 |
try {
|
639 |
InputStream template = this.getClass().getClassLoader().getResourceAsStream(name); |
640 |
if( template == null ) { |
641 |
return null; |
642 |
} |
643 |
List<String> lines = IOUtils.readLines(template); |
644 |
return StringUtils.join(lines, "\n"); |
645 |
} catch (Exception ex) { |
646 |
logger.warn("Can't load new-template from '"+name+"'.",ex); |
647 |
return null; |
648 |
} |
649 |
} |
650 |
|
651 |
public ScriptingUnit get(String name) { |
652 |
return this.manager.getScript(name); |
653 |
} |
654 |
|
655 |
public ScriptingUnit get(File file) { |
656 |
return this.manager.getScript(file); |
657 |
} |
658 |
|
659 |
@Override
|
660 |
public boolean move(ScriptingFolder target) { |
661 |
if (! manager.validateUnitId(target, this.getId()) ) { |
662 |
logger.info("Can't move script '"+this.getId()+"' to '"+target.getFile().getAbsolutePath()+"', is not valid."); |
663 |
return false; |
664 |
} |
665 |
if( !this.isSaved() ) { |
666 |
logger.info("Can't move script '"+this.getId()+"', is not saved."); |
667 |
return false; |
668 |
} |
669 |
try {
|
670 |
File codefile = this.getFileResource(this.extension); |
671 |
FileUtils.moveFileToDirectory(this.getFile(), target.getFile(),true); |
672 |
FileUtils.moveFileToDirectory(codefile, target.getFile(), true);
|
673 |
this.parent = target;
|
674 |
this.load(target, id);
|
675 |
} catch (IOException ex) { |
676 |
logger.info("Can't move script '"+this.getId()+"' to '"+target.getFile().getAbsolutePath()+"', "+ex.getMessage(),ex); |
677 |
return false; |
678 |
} |
679 |
return true; |
680 |
} |
681 |
|
682 |
@Override
|
683 |
public boolean rename(String newId) { |
684 |
if (! manager.validateUnitId(this.getParent(), newId) ) { |
685 |
logger.info("Can't rename script '"+this.getId()+"', target id '"+newId+"' is not valid."); |
686 |
return false; |
687 |
} |
688 |
if( !this.isSaved() ) { |
689 |
logger.info("Can't rename script '"+this.getId()+"', is not saved."); |
690 |
return false; |
691 |
} |
692 |
try {
|
693 |
ScriptingFolder target = this.getParent();
|
694 |
File codefile = this.getFileResource(this.extension); |
695 |
FileUtils.moveFile(this.getFile(), new File(target.getFile(),newId+".inf") ); |
696 |
FileUtils.moveFile(codefile, new File(target.getFile(),newId+this.extension)); |
697 |
this.setId(newId);
|
698 |
this.saveInfo();
|
699 |
this.load(target, id);
|
700 |
} catch (IOException ex) { |
701 |
logger.info("Can't rename script '"+this.getId()+"' to '"+newId+"', "+ex.getMessage(),ex); |
702 |
return false; |
703 |
} |
704 |
return true; |
705 |
} |
706 |
|
707 |
} |