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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.sling.scripting.jsp.taglib;
import static org.apache.sling.scripting.jsp.taglib.DefineObjectsTag.DEFAULT_BINDINGS_NAME;
import static org.apache.sling.scripting.jsp.taglib.DefineObjectsTag.DEFAULT_LOG_NAME;
import static org.apache.sling.scripting.jsp.taglib.DefineObjectsTag.DEFAULT_NODE_NAME;
import static org.apache.sling.scripting.jsp.taglib.DefineObjectsTag.DEFAULT_REQUEST_NAME;
import static org.apache.sling.scripting.jsp.taglib.DefineObjectsTag.DEFAULT_RESOURCE_NAME;
import static org.apache.sling.scripting.jsp.taglib.DefineObjectsTag.DEFAULT_RESOURCE_RESOLVER_NAME;
import static org.apache.sling.scripting.jsp.taglib.DefineObjectsTag.DEFAULT_RESPONSE_NAME;
import static org.apache.sling.scripting.jsp.taglib.DefineObjectsTag.DEFAULT_SLING_NAME;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.jsp.tagext.TagData;
import javax.servlet.jsp.tagext.TagExtraInfo;
import javax.servlet.jsp.tagext.VariableInfo;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.SlingHttpServletResponse;
import org.apache.sling.api.resource.Resource;
import org.apache.sling.api.resource.ResourceResolver;
import org.apache.sling.api.scripting.SlingBindings;
import org.apache.sling.api.scripting.SlingScriptHelper;
import org.slf4j.Logger;
/**
* This class defines the scripting variables that are created by the
* DefineObjectsTag.
*/
public class DefineObjectsTEI extends TagExtraInfo {
/**
* The name of the tag attribute used to define the name of the
* RenderRequest scripting variable (value is "requestName").
*/
public static final String ATTR_REQUEST_NAME = "requestName";
/**
* The name of the tag attribute used to define the name of the
* RenderResponse scripting variable (value is "responseName").
*/
public static final String ATTR_RESPONSE_NAME = "responseName";
/**
* The name of the tag attribute used to define the name of the Resource
* scripting variable (value is "resourceName").
*/
public static final String ATTR_RESOURCE_NAME = "resourceName";
/**
* The name of the tag attribute used to define the name of the Node
* scripting variable (value is "nodeName").
*/
public static final String ATTR_NODE_NAME = "nodeName";
/**
* The name of the tag attribute used to define the name of the
* SlingScriptHelper scripting variable (value is "slingName").
*/
public static final String ATTR_SLING_NAME = "slingName";
/**
* The name of the tag attribute used to define the name of the
* ResourceResolver scripting variable (value is "resourceResolverName").
*/
public static final String ATTR_RESOURCE_RESOLVER_NAME = "resourceResolverName";
/**
* The name of the tag attribute used to define the name of the
* logger scripting variable (value is "logName").
*/
public static final String ATTR_LOG_NAME = "logName";
/**
* The name of the tag attribute used to define the name of the
* SlingBindings scripting variable (value is "bindingsName").
*/
public static final String ATTR_BINDINGS_NAME = "bindingsName";
private static final String SLING_REQUEST_CLASS = SlingHttpServletRequest.class.getName();
private static final String SLING_RESPONSE_CLASS = SlingHttpServletResponse.class.getName();
private static final String RESOURCE_CLASS = Resource.class.getName();
private static final String RESOURCE_RESOLVER_CLASS = ResourceResolver.class.getName();
private static final String NODE_CLASS = "javax.jcr.Node";
private static final String SLING_CLASS = SlingScriptHelper.class.getName();
private static final String LOG_CLASS = Logger.class.getName();
private static final String BINDINGS_CLASS = SlingBindings.class.getName();
/**
* Returns an Array of VariableInfo objects describing
* scripting variables.
*
* @see javax.servlet.jsp.tagext.TagExtraInfo#getVariableInfo(TagData)
*/
public VariableInfo[] getVariableInfo(TagData data) {
List varInfos = new ArrayList();
addVar(varInfos, data, ATTR_REQUEST_NAME, DEFAULT_REQUEST_NAME,
SLING_REQUEST_CLASS);
addVar(varInfos, data, ATTR_RESPONSE_NAME, DEFAULT_RESPONSE_NAME,
SLING_RESPONSE_CLASS);
addVar(varInfos, data, ATTR_RESOURCE_NAME, DEFAULT_RESOURCE_NAME,
RESOURCE_CLASS);
if ( DefineObjectsTag.JCR_NODE_CLASS != null ) {
addVar(varInfos, data, ATTR_NODE_NAME, DEFAULT_NODE_NAME, NODE_CLASS);
}
addVar(varInfos, data, ATTR_RESOURCE_RESOLVER_NAME,
DEFAULT_RESOURCE_RESOLVER_NAME, RESOURCE_RESOLVER_CLASS);
addVar(varInfos, data, ATTR_SLING_NAME,
DEFAULT_SLING_NAME, SLING_CLASS);
addVar(varInfos, data, ATTR_LOG_NAME,
DEFAULT_LOG_NAME, LOG_CLASS);
addVar(varInfos, data, ATTR_BINDINGS_NAME,
DEFAULT_BINDINGS_NAME, BINDINGS_CLASS);
return varInfos.toArray(new VariableInfo[varInfos.size()]);
}
private void addVar(List varInfos, TagData data,
String attrName, String defaultValue, String varClass) {
String value = getValue(data, attrName, defaultValue);
if (value != null && varClass != null) {
varInfos.add(new VariableInfo(value, varClass, true,
VariableInfo.AT_END));
}
}
private String getValue(TagData data, String name, String defaultValue) {
Object value = data.getAttribute(name);
if (value instanceof String) {
return (String) value;
}
return defaultValue;
}
}