svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.lib / org.gvsig.expressionevaluator.lib.api / src / main / java / org / gvsig / expressionevaluator / spi / AbstractFunction.java @ 45011
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package org.gvsig.expressionevaluator.spi; |
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import java.io.File; |
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import java.io.InputStream; |
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import java.net.MalformedURLException; |
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import java.net.URI; |
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import java.net.URISyntaxException; |
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import java.net.URL; |
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import java.time.LocalDateTime; |
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import java.time.ZoneId; |
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import java.time.temporal.TemporalAccessor; |
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import java.util.ArrayList; |
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import java.util.Date; |
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import java.util.List; |
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import java.util.Locale; |
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import java.util.Objects; |
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import org.apache.commons.io.IOUtils; |
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import org.apache.commons.lang3.BooleanUtils; |
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import org.apache.commons.lang3.Range; |
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import org.apache.commons.lang3.StringUtils; |
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import org.apache.commons.math.util.MathUtils; |
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import org.gvsig.expressionevaluator.Code; |
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import org.gvsig.expressionevaluator.Codes; |
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import org.gvsig.expressionevaluator.ExpressionRuntimeException; |
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import org.gvsig.expressionevaluator.Formatter; |
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import org.gvsig.expressionevaluator.Function; |
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import org.gvsig.expressionevaluator.I18N; |
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import org.gvsig.expressionevaluator.Interpreter; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.i18n.I18nManager; |
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//import org.gvsig.fmap.geom.Geometry;
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//import org.gvsig.fmap.geom.primitive.Point;
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import org.json.JSONArray; |
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import org.json.JSONObject; |
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@SuppressWarnings("UseSpecificCatch") |
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public abstract class AbstractFunction implements Function { |
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private final String name; |
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private String group; |
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private Range argc;
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private String description; |
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private String[] descriptionArgs; |
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private List<String> alias; |
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private String template; |
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private String returnType; |
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private boolean sqlCompatible; |
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protected AbstractFunction(String group, String name, Range argc, String description, String template, String[] descriptionArgs, String returnType, boolean sqlCompatible) { |
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this.name = name;
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this.group = group;
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this.argc = argc;
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this.description = description;
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this.template = template;
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this.descriptionArgs = descriptionArgs;
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this.returnType = returnType;
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this.sqlCompatible = sqlCompatible;
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load_from_resource(); |
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} |
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protected AbstractFunction(String group, String name, Range argc, String description, String template, String[] descriptionArgs, String returnType) { |
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this(group, name, argc, description, template, descriptionArgs, returnType, false); |
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} |
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protected AbstractFunction(String group, String name, Range argc, String description, String template, String[] descriptionArgs) { |
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this(group, name, argc, description, template, null, null); |
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} |
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protected AbstractFunction(String group, String name, Range argc, String description, String template) { |
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this(group, name, argc, description, template, null, null); |
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} |
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protected AbstractFunction(String group, String name, Range argc) { |
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this(group, name, argc, null, null, null, null); |
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} |
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@Override
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public String name() { |
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return this.name; |
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} |
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@Override
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public String returnType() { |
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return this.returnType; |
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} |
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@Override
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public String group() { |
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return this.group; |
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} |
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@Override
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public Range argc() {
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return argc;
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} |
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@Override
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public String description() { |
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if( StringUtils.equalsIgnoreCase(System.getProperty("ExpressionEvaluatorReloadFunctionResources"), "true")) { |
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load_from_resource(); |
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} |
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return description;
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} |
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@Override
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public String[] descriptionArgs() { |
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return descriptionArgs;
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} |
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public String getFullDescription() { |
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I18nManager i18n = ToolsLocator.getI18nManager(); |
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StringBuilder html = new StringBuilder(); |
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html.append("<html>\n");
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// Lo primero llamamos a description() para forzar la recarga de los
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// recursos si fuese necesaria.
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String functionDescription = this.description(); |
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html.append("<b>").append(i18n.getTranslation("_Function")).append("</b> ").append(this.name()).append("<br>\n<br>\n"); |
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List<String> aliases = this.aliases(); |
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if( aliases!=null && !aliases.isEmpty() ) { |
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html.append("<b>").append(i18n.getTranslation("_Aliases")).append(":</b> ").append("<ul>\n"); |
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for (String theAlias : aliases) { |
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html.append("<li>").append(theAlias).append("</li>\n"); |
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} |
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html.append("</ul>\n");
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} |
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html.append("<b>").append(i18n.getTranslation("_Return")).append("</b> "); |
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html.append(StringUtils.isEmpty(this.returnType()) ? "Objec" : this.returnType()); |
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html.append("<br>\n");
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html.append("<b>").append(i18n.getTranslation("_Template")).append("</b> "); |
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html.append(StringUtils.isEmpty(this.template()) ? this.name() + "()" : this.template()); |
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html.append("<br>\n");
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String[] args = this.descriptionArgs(); |
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if (args != null) { |
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html.append("<b>").append(i18n.getTranslation("_Arguments")).append(":</b> ").append("<ul>\n"); |
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for (String arg : args) { |
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html.append("<li>").append(arg).append("</li>\n"); |
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} |
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html.append("</ul>\n");
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html.append("<br>\n");
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} |
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if( !StringUtils.isBlank(functionDescription) ) {
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html.append("<b>").append(i18n.getTranslation("_Description")).append("</b><br>\n"); |
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html.append(functionDescription.replace("\n", "<br>")).append("<br>\n"); |
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} |
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html.append("</html>\n");
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return html.toString();
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} |
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@Override
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public void addAlias(String name) { |
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if( StringUtils.isBlank(name) ) {
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return;
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} |
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if( this.alias == null ) { |
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this.alias = new ArrayList<>(); |
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} |
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if( this.alias.contains(name) ) { |
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return;
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} |
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this.alias.add(name);
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} |
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@Override
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public List<String> aliases() { |
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return this.alias; |
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} |
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@Override
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public String template() { |
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return this.template; |
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} |
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@Override
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public boolean isOperator() { |
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return false; |
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} |
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@Override
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public boolean isHidden() { |
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return false; |
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} |
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@Override
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public boolean useArgumentsInsteadObjects() { |
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return false; |
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} |
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@Override
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public boolean isSQLCompatible() { |
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return sqlCompatible;
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} |
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@Override
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public boolean allowConstantFolding() { |
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return false; |
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} |
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@Override
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public Object call(Interpreter interpreter, Codes args) throws Exception { |
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return null; |
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} |
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protected int getInt(Object args[], int n) { |
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if( args.length < n ) {
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throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
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} |
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return getInt(args[n],n);
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} |
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protected int getInt(Object value, int n) { |
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if( value == null ) { |
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throw new IllegalArgumentException(I18N.Illegal_null_value_for_argument_XargnX_of_XIdentifierX_function(name(), n)); |
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} |
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if( !(value instanceof Number) ) { |
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String type = value.getClass().getCanonicalName();
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throw new IllegalArgumentException( |
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I18N.The_type_of_the_argument_XargnX_for_the_XIdentifierX_function_is_incorrect(name(), n) + " " +
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I18N.Expected_XexpectedX_and_found_XfoundX("Number",type)
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); |
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} |
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return ((Number)value).intValue(); |
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} |
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protected long getLong(Object args[], int n) { |
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if( args.length < n ) {
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throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
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} |
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return getLong(args[n],n);
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} |
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protected long getLong(Object value, int n) { |
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if( value == null ) { |
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throw new IllegalArgumentException(I18N.Illegal_null_value_for_argument_XargnX_of_XIdentifierX_function(name(), n)); |
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} |
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if( !(value instanceof Number) ) { |
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String type = value.getClass().getCanonicalName();
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throw new IllegalArgumentException( |
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I18N.The_type_of_the_argument_XargnX_for_the_XIdentifierX_function_is_incorrect(name(), n) + " " +
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I18N.Expected_XexpectedX_and_found_XfoundX("Number",type)
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); |
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} |
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return ((Number)value).longValue(); |
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} |
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protected double getDouble(Object args[], int n) { |
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if( args.length < n ) {
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throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
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} |
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return getDouble(args[n],n);
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} |
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protected double getDouble(Object value, int arg) { |
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if( value == null ) { |
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throw new IllegalArgumentException(I18N.Illegal_null_value_for_argument_XargnX_of_XIdentifierX_function(name(), arg)); |
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} |
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if( !(value instanceof Number) ) { |
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String type = value.getClass().getCanonicalName();
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throw new IllegalArgumentException( |
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I18N.The_type_of_the_argument_XargnX_for_the_XIdentifierX_function_is_incorrect(name(), arg) + " " +
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I18N.Expected_XexpectedX_and_found_XfoundX("Number",type)
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); |
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} |
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return ((Number)value).doubleValue(); |
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} |
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protected float getFloat(Object args[], int n) { |
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if( args.length < n ) {
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throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
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} |
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return getFloat(args[n],n);
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} |
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protected float getFloat(Object value, int arg) { |
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if( value == null ) { |
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throw new IllegalArgumentException(I18N.Illegal_null_value_for_argument_XargnX_of_XIdentifierX_function(name(), arg)); |
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} |
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if( !(value instanceof Number) ) { |
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String type = value.getClass().getCanonicalName();
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throw new IllegalArgumentException( |
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I18N.The_type_of_the_argument_XargnX_for_the_XIdentifierX_function_is_incorrect(name(), arg) + " " +
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I18N.Expected_XexpectedX_and_found_XfoundX("Number",type)
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); |
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} |
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return ((Number)value).floatValue(); |
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} |
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protected String getStr(Object args[], int n) { |
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if( args.length < n ) {
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throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
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} |
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return getStr(args[n],n);
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} |
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protected String getStr(Object value, int n) { |
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return Objects.toString(value, ""); |
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} |
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protected File getFile(Object args[], int n) { |
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if( args.length < n ) {
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throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
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} |
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return getFile(args[n],n);
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} |
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protected File getFile(Object value, int n) { |
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if( value == null ) { |
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return null; |
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} |
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if( value instanceof File ) { |
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return (File)value; |
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} |
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if( value instanceof URL ) { |
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try {
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return new File(((URL)value).toURI()); |
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} catch (URISyntaxException ex) { |
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return null; |
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} |
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} |
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if( value instanceof URI ) { |
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return new File(((URI)value)); |
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} |
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String s = Objects.toString(value, null); |
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if( s == null ) { |
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return null; |
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} |
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File f = new File(s); |
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return f;
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} |
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protected Object getObject(Object args[], int n) { |
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if( args.length < n ) {
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throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
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} |
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return args[n];
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} |
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|
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protected Object getObject(Interpreter interpreter, Codes args, int n) { |
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if( args.size() < n ) {
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throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.size(), n)); |
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} |
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Code arg = args.get(n); |
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if( arg==null ) { |
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return null; |
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} |
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Object value = interpreter.run(arg);
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return value;
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} |
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protected Comparable getComparable(Object[] args, int n) { |
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if( args.length < n ) {
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throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
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} |
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return getComparable(args[n],n);
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} |
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|
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protected Comparable getComparable(Object value, int n) { |
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if( value == null ) { |
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return null; |
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} |
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if( !(value instanceof Comparable) ) { |
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String type = value.getClass().getCanonicalName();
|
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throw new IllegalArgumentException( |
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I18N.The_type_of_the_argument_XargnX_for_the_XIdentifierX_function_is_incorrect(name(), n) + " " +
|
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I18N.Expected_XexpectedX_and_found_XfoundX("Comparable",type)
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); |
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} |
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return (Comparable)value; |
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} |
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|
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protected Comparable getDate(Object[] args, int n) { |
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if( args.length < n ) {
|
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throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
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} |
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return getDate(args[n],n);
|
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} |
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|
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protected Date getDate(Object value, int n) { |
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if( value == null ) { |
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return null; |
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} |
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if( !(value instanceof Date) ) { |
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String type = value.getClass().getCanonicalName();
|
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throw new IllegalArgumentException( |
| 388 |
I18N.The_type_of_the_argument_XargnX_for_the_XIdentifierX_function_is_incorrect(name(), n) + " " +
|
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I18N.Expected_XexpectedX_and_found_XfoundX("Date",type)
|
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); |
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} |
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return (Date)value; |
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} |
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|
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protected LocalDateTime getLocalDateTime(Object[] args, int n) { |
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if( args.length < n ) {
|
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throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
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} |
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return getLocalDateTime(args[n],n);
|
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} |
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|
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protected LocalDateTime getLocalDateTime(Object value, int n) { |
| 403 |
if( value == null ) { |
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return null; |
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} |
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if( value instanceof Date ) { |
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Date date = ((Date)value); |
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return date.toInstant().atZone(ZoneId.systemDefault()).toLocalDateTime();
|
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} |
| 410 |
if( value instanceof LocalDateTime ) { |
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return (LocalDateTime) value;
|
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} |
| 413 |
if( value instanceof TemporalAccessor ) { |
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return LocalDateTime.from(((TemporalAccessor)value));
|
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} |
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String type = value.getClass().getCanonicalName();
|
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throw new IllegalArgumentException( |
| 418 |
I18N.The_type_of_the_argument_XargnX_for_the_XIdentifierX_function_is_incorrect(name(), n) + " " +
|
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I18N.Expected_XexpectedX_and_found_XfoundX("Temporal/Date",type)
|
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); |
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} |
| 422 |
|
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public URL getURL(Object[] args, int index) throws MalformedURLException { |
| 424 |
Object obj = getObject(args, index);
|
| 425 |
if( obj == null ) { |
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return null; |
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} |
| 428 |
URL url;
|
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if( obj instanceof URL ) { |
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url = (URL) obj; } else if( obj instanceof CharSequence ) { |
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url = new URL(((CharSequence)obj).toString()); |
| 432 |
} else if( obj instanceof File ) { |
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url = ((File)obj).toURI().toURL();
|
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} else if( obj instanceof URI ) { |
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url = ((URI)obj).toURL();
|
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} else {
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throw new ExpressionRuntimeException("The "+this.name()+" function require a File, URI or a String and a received a '"+obj.getClass().getSimpleName()+"'."); |
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} |
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return url;
|
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} |
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|
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protected boolean getBoolean(Object args[], int n, Double accuracy) { |
| 443 |
if( args.length < n ) {
|
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throw new IllegalArgumentException(I18N.Required_argument_XargnX_and_only_found_XargcX_in_call_to_XIdentifierX(name(), args.length, n)); |
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} |
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return getBoolean(args[n], n, accuracy);
|
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} |
| 448 |
|
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protected boolean getBoolean(Object value, int n) { |
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return getBoolean(value, n, MathUtils.EPSILON);
|
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} |
| 452 |
|
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protected boolean getBoolean(Object value, int n, Double accuracy) { |
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return toBoolean(value, accuracy);
|
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} |
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|
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protected boolean getBoolean(Interpreter interpreter, Codes args, int n) { |
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Object value = getObject(interpreter, args, n);
|
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return toBoolean(value, interpreter.getAccuracy());
|
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} |
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|
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protected boolean toBoolean(Object value, Double accuracy) { |
| 463 |
if( value == null ) { |
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return false; |
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} |
| 466 |
if( value instanceof Boolean ) { |
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return (Boolean)value; |
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} |
| 469 |
if( value instanceof Number ) { |
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return MathUtils.compareTo(
|
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((Number) value).doubleValue(),
|
| 472 |
0,
|
| 473 |
accuracy==null? MathUtils.EPSILON:accuracy
|
| 474 |
) == 0;
|
| 475 |
} |
| 476 |
return BooleanUtils.toBoolean(value.toString());
|
| 477 |
} |
| 478 |
|
| 479 |
private void load_from_resource() { |
| 480 |
String lang = Locale.getDefault().getLanguage(); |
| 481 |
URL url = this.getClass().getResource("/org/gvsig/expressionevaluator/functions/"+lang+"/"+this.name()+".json"); |
| 482 |
if( url == null ) { |
| 483 |
url = this.getClass().getResource("/org/gvsig/expressionevaluator/functions/en/"+this.name()+".json"); |
| 484 |
if( url == null ) { |
| 485 |
return;
|
| 486 |
} |
| 487 |
} |
| 488 |
InputStream is = null; |
| 489 |
JSONObject json; |
| 490 |
try {
|
| 491 |
is = url.openStream(); |
| 492 |
List<String> lines = IOUtils.readLines(is); |
| 493 |
json = new JSONObject(StringUtils.join(lines, "\n")); |
| 494 |
} catch (Exception ex) { |
| 495 |
return;
|
| 496 |
} finally {
|
| 497 |
IOUtils.closeQuietly(is); |
| 498 |
} |
| 499 |
|
| 500 |
if( json.has("group") ) { |
| 501 |
this.group = json.getString("group"); |
| 502 |
} |
| 503 |
if( json.has("description") ) { |
| 504 |
Object x = json.get("description"); |
| 505 |
if( x instanceof String ) { |
| 506 |
this.description = (String) x; |
| 507 |
} else if( x instanceof JSONArray ) { |
| 508 |
StringBuilder builder = new StringBuilder(); |
| 509 |
for (int i = 0; i < ((JSONArray)x).length(); i++) { |
| 510 |
if( i>0 ) { |
| 511 |
builder.append(" ");
|
| 512 |
} |
| 513 |
builder.append(((JSONArray)x).getString(i)); |
| 514 |
} |
| 515 |
this.description = builder.toString();
|
| 516 |
} else {
|
| 517 |
this.description = Objects.toString(x, null); |
| 518 |
} |
| 519 |
this.description = StringUtils.replace(
|
| 520 |
this.description,
|
| 521 |
"@@@",
|
| 522 |
url.toString() |
| 523 |
); |
| 524 |
} |
| 525 |
if( json.has("template") ) { |
| 526 |
this.template = json.getString("template"); |
| 527 |
} |
| 528 |
if( json.has("returnType") ) { |
| 529 |
this.returnType = json.getString("returnType"); |
| 530 |
} |
| 531 |
if( json.has("sqlCompatible") ) { |
| 532 |
this.sqlCompatible = json.getBoolean("sqlCompatible"); |
| 533 |
} |
| 534 |
if( json.has("args") ) { |
| 535 |
JSONArray x = json.getJSONArray("args");
|
| 536 |
String[] args = new String[x.length()]; |
| 537 |
for (int i = 0; i < x.length(); i++) { |
| 538 |
args[i] = x.getString(i); |
| 539 |
} |
| 540 |
this.descriptionArgs = args;
|
| 541 |
} |
| 542 |
if( json.has("alias") ) { |
| 543 |
JSONArray x = json.getJSONArray("alias");
|
| 544 |
for (int i = 0; i < x.length(); i++) { |
| 545 |
this.addAlias(x.getString(i));
|
| 546 |
} |
| 547 |
} |
| 548 |
} |
| 549 |
protected static final int TYPE_INT = 0b0000001; |
| 550 |
protected static final int TYPE_LONG = 0b0000010; |
| 551 |
protected static final int TYPE_FLOAT = 0b0000100; |
| 552 |
protected static final int TYPE_DOUBLE = 0b0001000; |
| 553 |
protected static final int TYPE_BOOLEAN = 0b0010000; |
| 554 |
protected static final int TYPE_STRING = 0b0100000; |
| 555 |
protected static final int TYPE_DATE = 0b1000000; |
| 556 |
|
| 557 |
protected int getType(Object op1, Object op2) { |
| 558 |
int r = 0; |
| 559 |
if( op1 instanceof Double ) { |
| 560 |
r |= TYPE_DOUBLE; |
| 561 |
} else if( op1 instanceof Float ) { |
| 562 |
r |= TYPE_FLOAT; |
| 563 |
} else if( op1 instanceof Long ) { |
| 564 |
r |= TYPE_LONG; |
| 565 |
} else if( op1 instanceof Integer ) { |
| 566 |
r |= TYPE_INT; |
| 567 |
} else if( op1 instanceof Boolean ) { |
| 568 |
r |= TYPE_BOOLEAN; |
| 569 |
} else if( op1 instanceof String ) { |
| 570 |
r |= TYPE_STRING; |
| 571 |
} else if( op1 instanceof Date ) { |
| 572 |
r |= TYPE_DATE; |
| 573 |
} |
| 574 |
if( op2 instanceof Double ) { |
| 575 |
r |= TYPE_DOUBLE; |
| 576 |
} else if( op2 instanceof Float ) { |
| 577 |
r |= TYPE_FLOAT; |
| 578 |
} else if( op2 instanceof Long ) { |
| 579 |
r |= TYPE_LONG; |
| 580 |
} else if( op2 instanceof Integer ) { |
| 581 |
r |= TYPE_INT; |
| 582 |
} else if( op2 instanceof Boolean ) { |
| 583 |
r |= TYPE_BOOLEAN; |
| 584 |
} else if( op2 instanceof String ) { |
| 585 |
r |= TYPE_STRING; |
| 586 |
} else if( op2 instanceof Date ) { |
| 587 |
r |= TYPE_DATE; |
| 588 |
} |
| 589 |
return r;
|
| 590 |
} |
| 591 |
|
| 592 |
@Override
|
| 593 |
public String toString(Codes args, Formatter<Code> formatter) { |
| 594 |
return null; |
| 595 |
} |
| 596 |
|
| 597 |
} |