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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.sca.implementation.web;
import java.util.ArrayList;
import java.util.List;
import org.apache.tuscany.sca.assembly.ComponentReference;
import org.apache.tuscany.sca.runtime.RuntimeComponent;
/**
* Singleton instance to share data between the ModuleActivator,
* ContextScriptProcessorExtensionPoint, and Taglib tags.
*
* TODO: find a way to share the data without needing a singleton
*/
public class WebSingleton {
private List<ContextScriptProcessor> contextScriptProcessors = new ArrayList<ContextScriptProcessor>();
private RuntimeComponent runtimeComponent;
public static final WebSingleton INSTANCE = new WebSingleton();
private WebSingleton() {
}
public ComponentReference getComponentReference(String name) {
if (runtimeComponent == null) {
throw new IllegalStateException("RuntimeComponent is null. Missing a <implementation.web>?");
}
for (ComponentReference cr : runtimeComponent.getReferences()) {
if (cr.getName().equals(name)) {
return cr;
}
}
return null;
}
public void addContextScriptProcessor(ContextScriptProcessor csp) {
contextScriptProcessors.add(csp);
}
public List<ContextScriptProcessor> getContextScriptProcessors() {
return contextScriptProcessors;
}
public RuntimeComponent getRuntimeComponent() {
return runtimeComponent;
}
public void setRuntimeComponent(RuntimeComponent rc) {
if (this.runtimeComponent != null) {
throw new IllegalStateException("adding component '" + rc.getName() + "' but web module already has a component: " + runtimeComponent.getName());
}
this.runtimeComponent = rc;
}
}
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