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31 package org.objectweb.proactive.core.component.xml;
32
33 import org.apache.log4j.Logger;
34
35 import org.objectweb.proactive.core.descriptor.data.ProActiveDescriptor;
36 import org.objectweb.proactive.core.xml.handler.AbstractUnmarshallerDecorator;
37 import org.objectweb.proactive.core.xml.handler.UnmarshallerHandler;
38 import org.objectweb.proactive.core.xml.io.Attributes;
39
40 import org.xml.sax.SAXException  ;
41
42 import java.util.ArrayList ;
43 import java.util.HashMap ;
44 import java.util.List ;
45
46
47
50 public class ComponentsHandler extends AbstractUnmarshallerDecorator
51 implements ContainerHandlerMarker {
52 public static Logger logger = Logger.getLogger(ComponentsHandler.class.getName());
53 private ProActiveDescriptor deploymentDescriptor;
54 private ComponentsCache componentsCache;
55 private HashMap componentTypes;
56 private List subComponents;
57 private boolean enabled;
58 private ContainerElementHierarchy containersHierarchy;
59
60 public ComponentsHandler(ProActiveDescriptor deploymentDescriptor,
61 ComponentsCache componentsCache, HashMap componentTypes,
62 AbstractContainerComponentHandler fatherHandler) {
63 enable();
64 containersHierarchy = new ContainerElementHierarchy();
65 containersHierarchy.addFatherHandler(fatherHandler);
66 this.deploymentDescriptor = deploymentDescriptor;
67 this.componentsCache = componentsCache;
68 this.componentTypes = componentTypes;
69
70 BindingsHandler bindings_handler = new BindingsHandler(componentsCache);
73 addHandler(ComponentsDescriptorConstants.BINDINGS_TAG, bindings_handler);
74 subComponents = new ArrayList ();
75 getContainerElementHierarchy().disableGrandFatherHandler();
76 }
77
78
81 protected void notifyEndActiveHandler(String name,
82 UnmarshallerHandler activeHandler) throws SAXException {
83 if (isEnabled() ||
84 getContainerElementHierarchy().containsChild(activeHandler)) {
85 enable(); if (name.equals(
87 ComponentsDescriptorConstants.PRIMITIVE_COMPONENT_TAG) ||
88 name.equals(
89 ComponentsDescriptorConstants.COMPOSITE_COMPONENT_TAG) ||
90 name.equals(
91 ComponentsDescriptorConstants.PARALLEL_COMPOSITE_COMPONENT_TAG)) {
92 ComponentResultObject result = (ComponentResultObject) activeHandler.getResultObject();
94 if (result.componentsAreParallelized()) {
95 String [] component_names = result.getNames();
96 for (int i = 0; i < component_names.length; i++) {
97 subComponents.add(component_names[i]);
98 if (logger.isDebugEnabled()) {
99 logger.debug("adding component's name : " +
100 component_names[i]);
101 }
102 }
103 } else {
104 subComponents.add(result.getName());
105 if (logger.isDebugEnabled()) {
106 logger.debug("adding component's name : " +
107 ((ComponentResultObject) activeHandler.getResultObject()).getName());
108 }
109 }
110 }
111 }
112 }
113
114
117 public Object getResultObject() throws SAXException {
118 return subComponents;
119 }
120
121
124 public void readValue(String value) throws SAXException {
125 super.readValue(value);
126 }
127
128
131 public void startElement(String name, Attributes attributes)
132 throws SAXException {
133 if (isEnabled()) {
134 if (name.equals(
135 ComponentsDescriptorConstants.COMPOSITE_COMPONENT_TAG)) {
136 CompositeComponentHandler handler = new CompositeComponentHandler(deploymentDescriptor,
137 componentsCache, componentTypes, this);
138 getContainerElementHierarchy().addChildContainerHandler(handler);
139 addHandler(ComponentsDescriptorConstants.COMPOSITE_COMPONENT_TAG,
140 handler);
141 }
142 if (name.equals(
143 ComponentsDescriptorConstants.PRIMITIVE_COMPONENT_TAG)) {
144 addHandler(ComponentsDescriptorConstants.PRIMITIVE_COMPONENT_TAG,
145 new PrimitiveComponentHandler(deploymentDescriptor,
146 componentsCache, componentTypes));
147 }
148 if (name.equals(
149 ComponentsDescriptorConstants.PARALLEL_COMPOSITE_COMPONENT_TAG)) {
150 ParallelCompositeComponentHandler handler = new ParallelCompositeComponentHandler(deploymentDescriptor,
151 componentsCache, componentTypes, this);
152 addHandler(ComponentsDescriptorConstants.PARALLEL_COMPOSITE_COMPONENT_TAG,
153 handler);
154 getContainerElementHierarchy().addChildContainerHandler(handler);
155 }
156 }
157 super.startElement(name, attributes);
158 }
159
160 public void enable() {
161 enabled = true;
162 }
163
164 public void disable() {
165 enabled = false;
166 }
167
168 public boolean isEnabled() {
169 return enabled;
170 }
171
172
175 public ContainerElementHierarchy getContainerElementHierarchy() {
176 return containersHierarchy;
177 }
178
179
182 public void startContextElement(String name, Attributes attributes)
183 throws SAXException {
184 }
186 }
187 |
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