gvsig-tools / org.gvsig.tools / library / trunk / org.gvsig.tools / org.gvsig.tools.lib / src / main / java / org / gvsig / tools / dynobject / impl / DefaultDynObjectManager.java @ 112
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package org.gvsig.tools.dynobject.impl; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.util.Arrays; |
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import java.util.Collections; |
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import java.util.HashMap; |
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import java.util.HashSet; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.Set; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dynobject.DynClass; |
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import org.gvsig.tools.dynobject.DynMethod; |
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import org.gvsig.tools.dynobject.DynObject; |
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import org.gvsig.tools.dynobject.DynObjectManager; |
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import org.gvsig.tools.dynobject.DynStruct; |
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import org.gvsig.tools.dynobject.exception.DuplicateDynClassException; |
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import org.gvsig.tools.dynobject.exception.DynMethodException; |
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import org.gvsig.tools.dynobject.exception.DynMethodIllegalCodeException; |
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import org.gvsig.tools.dynobject.exception.DynMethodNotSupportedException; |
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import org.gvsig.tools.dynobject.exception.IllegalDynMethodException; |
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import org.gvsig.tools.dynobject.exception.IllegalDynMethodInvocationException; |
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import org.xmlpull.v1.XmlPullParser; |
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import org.xmlpull.v1.XmlPullParserException; |
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public class DefaultDynObjectManager implements DynObjectManager { |
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private static DefaultDynObjectManager manager = null; |
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private class MethodInfo { |
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int code;
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DynClass dynClass; |
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DynMethod dynMethod; |
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Class theClass;
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MethodInfo(Class theClass, DynClass dynClass, DynMethod dynMethod, int code) { |
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this.code = code;
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this.dynClass = dynClass;
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this.dynMethod = dynMethod;
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this.theClass = theClass;
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} |
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|
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String getKey() {
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return DefaultDynObjectManager.getKey(theClass, dynClass, dynMethod);
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} |
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|
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void check(Class theClass, int code) throws DynMethodException { |
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if( code != this.code) { |
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throw new DynMethodIllegalCodeException(dynMethod.getName(),this.code, code); |
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} |
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if( theClass != null ) { |
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if( this.theClass == null ) { |
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throw new IllegalDynMethodInvocationException(dynMethod.getName(), theClass); |
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} |
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if (!this.theClass.isAssignableFrom(theClass)) { |
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throw new IllegalDynMethodInvocationException(dynMethod.getName(),theClass); |
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} |
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} |
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} |
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|
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void check(DynClass dynClass, int code) throws DynMethodException { |
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if( code != this.code) { |
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throw new DynMethodIllegalCodeException(dynMethod.getName(),this.code, code); |
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} |
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if( dynClass != null ) { |
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if( this.dynClass == null ) { |
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throw new IllegalDynMethodInvocationException(dynMethod.getName(), dynClass); |
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} |
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if( dynClass != this.dynClass || !dynClass.getName().equalsIgnoreCase(this.dynClass.getName()) ) { |
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throw new IllegalDynMethodInvocationException(dynMethod.getName(), dynClass); |
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} |
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} |
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} |
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} |
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private class ClassesNamespaces { |
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private Map defaultNamespace; |
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private Map namespaces; |
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ClassesNamespaces() {
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this.namespaces = new HashMap(); |
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this.defaultNamespace = new HashMap(); |
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} |
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public Map addNamespace(String name) { |
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Map namespace = new HashMap(); |
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this.namespaces.put(name.toLowerCase(), namespace);
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return namespace;
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} |
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public Map getNamespace(String name) { |
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return (Map) this.namespaces.get(name.toLowerCase()); |
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} |
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public void clear() { |
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this.defaultNamespace.clear();
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this.namespaces.clear();
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} |
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public boolean containsClass(String name) { |
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name = name.toLowerCase(); |
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if( this.defaultNamespace.containsKey(name)) { |
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return true; |
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} |
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Iterator it = this.namespaces.values().iterator(); |
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while( it.hasNext() ) {
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Map names = (Map)it.next(); |
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if( names.containsKey(name)) {
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return true; |
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} |
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} |
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return false; |
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} |
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public boolean containsClass(String namespace, String name) { |
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name = name.toLowerCase(); |
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if( namespace == null ) { |
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return this.defaultNamespace.containsKey(name); |
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} |
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Map space = this.getNamespace(namespace); |
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if( space == null ) { |
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return false; |
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} |
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return space.containsKey(name);
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} |
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public boolean containsClass(DynClass dynClass) { |
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if( this.defaultNamespace.containsValue(dynClass)) { |
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return true; |
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} |
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Iterator it = this.namespaces.values().iterator(); |
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while( it.hasNext() ) {
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Map names = (Map)it.next(); |
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if( names.containsValue(dynClass)) {
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return true; |
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} |
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} |
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return false; |
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} |
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public DynClass get(String name, String namespace) { |
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if( namespace == null ) { |
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return (DynClass) this.defaultNamespace.get(name.toLowerCase()); |
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} |
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Map space = this.getNamespace(namespace); |
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return (DynClass) space.get(name.toLowerCase());
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} |
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public Set keySet() { |
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Set keyset = new HashSet(); |
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Iterator it = this.iterator(); |
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while( it.hasNext() ) {
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DynClass dynClass = (DynClass) it.next(); |
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keyset.add( dynClass.getFullName()) ; |
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} |
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return keyset;
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} |
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public Iterator iterator() { |
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final class MyIterator implements Iterator { |
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Iterator current;
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Iterator others;
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MyIterator(Iterator main, Iterator others) { |
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this.current = main;
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this.others = others;
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} |
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public boolean hasNext() { |
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if( this.current.hasNext() ) { |
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return true; |
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} |
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while( this.others.hasNext() ) { |
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this.current = (Iterator) others.next(); |
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if( this.current.hasNext() ) { |
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return true; |
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} |
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} |
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return false; |
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} |
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public Object next() { |
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if( this.current.hasNext() ) { |
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return this.current.next(); |
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} |
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while( this.others.hasNext() ) { |
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this.current = (Iterator) others.next(); |
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if( this.current.hasNext() ) { |
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return this.current.next(); |
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} |
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} |
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return null; |
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} |
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public void remove() { |
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throw new UnsupportedOperationException(); |
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} |
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} |
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return new MyIterator(this.defaultNamespace.values().iterator(), this.namespaces.values().iterator()); |
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} |
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public Object add(DynStruct dynClass) { |
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String name = dynClass.getName().toLowerCase();
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Map namespace;
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if( dynClass.getNamespace() != null ) { |
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namespace = (Map) this.getNamespace(dynClass.getNamespace()); |
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if( namespace == null ) { |
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namespace = this.addNamespace(dynClass.getNamespace());
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} |
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} else {
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namespace = this.defaultNamespace;
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} |
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if( namespace.containsKey(name) ) {
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throw new DuplicateDynClassException(dynClass); |
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} |
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return namespace.put(name, dynClass);
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} |
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public void remove(DynStruct dynClass) { |
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String name = dynClass.getName().toLowerCase();
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Map namespace;
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if( dynClass.getNamespace() != null ) { |
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namespace = (Map) this.getNamespace(dynClass.getNamespace()); |
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if( namespace == null ) { |
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namespace = this.addNamespace(dynClass.getNamespace());
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} |
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} else {
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namespace = this.defaultNamespace;
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} |
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if( namespace.containsKey(name) ) {
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namespace.remove(name); |
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} |
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} |
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public int size() { |
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int count = this.defaultNamespace.size(); |
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Iterator it = this.namespaces.values().iterator(); |
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while( it.hasNext() ) {
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Map names = (Map)it.next(); |
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count += names.size(); |
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} |
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return count;
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} |
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} |
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private Map anonymousClasses; |
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private ClassesNamespaces classes;
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private Map methodsMap; |
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private MethodInfo[] methods; |
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public static DefaultDynObjectManager getManager() { |
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if (manager == null) { |
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manager = new DefaultDynObjectManager();
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} |
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return manager;
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} |
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static String getKey(Class theClass, DynClass dynClass, DynMethod dynMethod) { |
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return DefaultDynObjectManager.getKey(theClass, dynClass, dynMethod.getName());
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} |
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static String getKey(Class theClass, DynClass dynClass, String methodName) { |
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if( dynClass == null ) { |
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return theClass.getName() + ":" + methodName; |
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} else {
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return dynClass.getName() + ":" + methodName; |
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} |
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} |
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public DefaultDynObjectManager() {
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this.classes = new ClassesNamespaces(); |
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this.anonymousClasses = new HashMap(); |
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this.methodsMap = new HashMap(); |
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this.methods = null; |
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} |
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public DynClass createDynClass(String name, String description) { |
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return new DefaultDynClass(this, name, description); |
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} |
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public DynClass createDynClass(String namespace, String name, String description) { |
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return new DefaultDynClass(this, namespace, name, description); |
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} |
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public void add(DynClass dynClass) { |
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this.classes.add( dynClass);
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} |
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public DynClass add(String name, String description) { |
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DynClass dynClass = (DynClass) this.classes.get(name.toLowerCase(), null); |
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if (dynClass == null) { |
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dynClass = this.createDynClass(name, description);
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this.add(dynClass);
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} |
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return dynClass;
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} |
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public DynClass add(String name) { |
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return this.add(name, null); |
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} |
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public void remove(DynStruct dynClass) { |
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this.classes.remove(dynClass);
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} |
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public DynClass get(String name) { |
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return this.get(name,null); |
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} |
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public DynClass get(String namespace, String name ) { |
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return (DynClass) this.classes.get(name,namespace); |
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} |
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public DynClass get(DynClass[] superClasses) { |
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StringBuffer name = new StringBuffer(); |
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for( int i=0; i<superClasses.length; i++) { |
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name.append(superClasses[i].getName()).append("+");
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} |
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DefaultDynClass dynClass = (DefaultDynClass) this.anonymousClasses.get(name.toString());
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if( dynClass == null ) { |
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dynClass = new DefaultDynClass(this, name.toString(), null, superClasses); |
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dynClass.setAnonymous(true);
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} |
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return dynClass;
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} |
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public int getCount() { |
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return this.classes.size(); |
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} |
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public List getNames() { |
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String[] names = (String[]) this.classes.keySet().toArray(); |
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Arrays.sort(names);
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return Collections.unmodifiableList(Arrays.asList(names)); |
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} |
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public boolean has(String name) { |
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return this.classes.containsClass(name); |
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} |
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public boolean has(String namespace ,String name) { |
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return this.classes.containsClass(namespace, name); |
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} |
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public Iterator interator() { |
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return this.classes.iterator(); |
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} |
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public DynObject createDynObject(String dynClassName) { |
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return this.createDynObject(dynClassName, null); |
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} |
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public DynObject createDynObject(String dynClassName, String namespace) { |
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DynClass dynClass = (DynClass) this.classes.get(dynClassName, namespace);
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if (dynClass == null) { |
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throw new IllegalArgumentException(dynClassName); |
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} |
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return this.createDynObject(dynClass); |
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} |
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public DynObject createDynObject(DynClass dynClass) {
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return new DefaultDynObject(dynClass); |
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} |
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public void consolide() { |
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Iterator it = this.classes.iterator(); |
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while( it.hasNext() ) {
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DefaultDynClass dc = (DefaultDynClass) it.next(); |
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dc.consolide(); |
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} |
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it = this.anonymousClasses.values().iterator();
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while( it.hasNext() ) {
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DefaultDynClass dc = (DefaultDynClass) it.next(); |
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dc.consolide(); |
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} |
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} |
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public int registerDynMethod(DynClass dynClass, DynMethod dynMethod) { |
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((DefaultDynClass)dynClass).addMethod(dynMethod); |
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return registerDynMethod(null, dynClass, dynMethod); |
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} |
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public int registerDynMethod(Class theClass, DynMethod dynMethod) { |
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return registerDynMethod(theClass, null, dynMethod); |
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} |
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int registerDynMethod(Class theClass, DynClass dynClass, DynMethod dynMethod) { |
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MethodInfo info = new MethodInfo(theClass, dynClass, dynMethod, 0); |
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MethodInfo oldInfo = (MethodInfo) methodsMap.get(info.getKey()); |
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if (oldInfo != null) { |
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// Update the method info
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oldInfo.dynClass = dynClass; |
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oldInfo.dynMethod = dynMethod; |
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return oldInfo.code;
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} |
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if (methods == null) { |
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methods = new MethodInfo[1]; |
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info.code = 0;
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} else {
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MethodInfo[] temp1 = new MethodInfo[methods.length + 1]; |
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System.arraycopy(methods, 0, temp1, 0, methods.length); |
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info.code = temp1.length - 1;
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methods = temp1; |
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} |
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methods[info.code] = info; |
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methodsMap.put(info.getKey(), info); |
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return info.code;
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} |
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public Object invokeDynMethod(Object self, int code, DynObject context) throws DynMethodException{ |
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try {
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/*
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* Intentamos ejecutar la operacion, y si peta ya haremos las
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* comprobaciones oportunas para lanzar la excepcion que toque.
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*
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* Asi evitamos codigo de comprobacion para los casos que valla bien
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* que deberian ser la mayoria.
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*/
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return methods[code].dynMethod.invoke(self, context);
|
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} catch (RuntimeException e) { |
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getDynMethod(self, code); |
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throw e;
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} catch (DynMethodException e) {
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getDynMethod(self, code); |
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throw e;
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} |
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|
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} |
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public int getDynMethodCode(DynClass dynClass, String methodName) throws DynMethodException { |
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String key = DefaultDynObjectManager.getKey(null, dynClass, methodName); |
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MethodInfo info = (MethodInfo) methodsMap.get(key); |
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if( info == null ) { |
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throw new IllegalDynMethodException(methodName, dynClass); |
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} |
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info.check(dynClass, info.code); |
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return info.code;
|
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} |
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|
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public int getDynMethodCode(Class theClass, String methodName) throws DynMethodException { |
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String key = DefaultDynObjectManager.getKey(theClass, null, methodName); |
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MethodInfo info = (MethodInfo) methodsMap.get(key); |
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if( info == null ) { |
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throw new IllegalDynMethodException(methodName, theClass); |
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} |
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info.check(theClass, info.code); |
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return info.code;
|
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} |
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|
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public DynMethod getDynMethod(int code) throws DynMethodException { |
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if (code >= methods.length) {
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throw new DynMethodNotSupportedException(code, "{null}"); |
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} |
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MethodInfo info = methods[code]; |
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info.check((Class)null, code); |
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return info.dynMethod;
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} |
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|
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public DynMethod getDynMethod(Object obj, int code) |
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throws DynMethodException {
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return getDynMethod(obj.getClass(), code);
|
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} |
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|
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public DynMethod getDynMethod(Class theClass, int code) |
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throws DynMethodException {
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if (code >= methods.length) {
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throw new DynMethodNotSupportedException(code, theClass.getName()); |
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} |
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MethodInfo info = methods[code]; |
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info.check(theClass, code); |
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return info.dynMethod;
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} |
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|
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public DynMethod getDynMethod(DynClass dynClass, int code) |
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throws DynMethodException {
|
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if (code >= methods.length) {
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throw new DynMethodNotSupportedException(code, dynClass.getName()); |
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} |
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MethodInfo info = methods[code]; |
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info.check(dynClass, code); |
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return info.dynMethod;
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} |
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|
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public DynMethod getDynMethod(DynObject dynObject, int code) |
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throws DynMethodException {
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return getDynMethod(dynObject.getDynClass(), code);
|
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} |
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|
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public void validate(DynObject object) { |
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// TODO
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return;
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} |
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|
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public Class getDefaultClassOfType(int type) { |
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return ToolsLocator.getDataTypesManager().getDefaultClass(type);
|
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} |
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|
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public Map importDynClassDefinitions(InputStream resource, |
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ClassLoader loader) throws XmlPullParserException, IOException { |
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return new DynClassImportHelper().importDefinitions(resource, loader); |
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} |
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|
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public Map importDynClassDefinitions(XmlPullParser parser, |
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ClassLoader loader) throws XmlPullParserException, IOException { |
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return new DynClassImportHelper().importDefinitions(parser, loader); |
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} |
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} |