| /******************************************************************************* |
| * 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.sightly.impl.engine.runtime; |
| |
| import java.util.Map; |
| import javax.script.Bindings; |
| import javax.script.ScriptContext; |
| |
| import org.apache.sling.api.SlingHttpServletRequest; |
| import org.apache.sling.api.resource.Resource; |
| import org.apache.sling.api.resource.ResourceResolver; |
| import org.apache.sling.api.scripting.SlingScriptConstants; |
| import org.apache.sling.api.scripting.SlingScriptHelper; |
| import org.apache.sling.scripting.sightly.ResourceResolution; |
| import org.apache.sling.scripting.sightly.SightlyException; |
| import org.apache.sling.scripting.sightly.extension.RuntimeExtension; |
| import org.apache.sling.scripting.sightly.impl.engine.ExtensionRegistryService; |
| import org.apache.sling.scripting.sightly.impl.utils.BindingsUtils; |
| import org.apache.sling.scripting.sightly.render.RenderContext; |
| import org.apache.sling.scripting.sightly.render.AbstractRuntimeObjectModel; |
| import org.apache.sling.scripting.sightly.render.RuntimeObjectModel; |
| |
| /** |
| * Rendering context for HTL rendering units. |
| */ |
| public class RenderContextImpl implements RenderContext { |
| |
| private static final AbstractRuntimeObjectModel OBJECT_MODEL = new SlingRuntimeObjectModel(); |
| |
| private final Bindings bindings; |
| private final ResourceResolver scriptResourceResolver; |
| private final ExtensionRegistryService extensionRegistryService; |
| private final SlingScriptHelper sling; |
| |
| public RenderContextImpl(ScriptContext scriptContext) { |
| bindings = scriptContext.getBindings(ScriptContext.ENGINE_SCOPE); |
| scriptResourceResolver = (ResourceResolver) scriptContext.getAttribute(SlingScriptConstants.ATTR_SCRIPT_RESOURCE_RESOLVER, |
| SlingScriptConstants.SLING_SCOPE); |
| bindings.put(SlingScriptConstants.ATTR_SCRIPT_RESOURCE_RESOLVER, scriptResourceResolver); |
| sling = BindingsUtils.getHelper(bindings); |
| extensionRegistryService = sling.getService(ExtensionRegistryService.class); |
| } |
| |
| @Override |
| public RuntimeObjectModel getObjectModel() { |
| return OBJECT_MODEL; |
| } |
| |
| /** |
| * Provide the bindings for this script |
| * @return - the list of global bindings available to the script |
| */ |
| @Override |
| public Bindings getBindings() { |
| return bindings; |
| } |
| |
| @Override |
| public Object call(String functionName, Object... arguments) { |
| Map<String, RuntimeExtension> extensions = extensionRegistryService.extensions(); |
| RuntimeExtension extension = extensions.get(functionName); |
| if (extension == null) { |
| throw new SightlyException("Runtime extension is not available: " + functionName); |
| } |
| return extension.call(this, arguments); |
| } |
| |
| public ResourceResolver getScriptResourceResolver() { |
| return scriptResourceResolver; |
| } |
| |
| public Resource resolveScript(String scriptIdentifier) { |
| SlingHttpServletRequest request = BindingsUtils.getRequest(bindings); |
| Resource caller = ResourceResolution.getResourceForRequest(scriptResourceResolver, request); |
| Resource result = ResourceResolution.getResourceFromSearchPath(caller, scriptIdentifier); |
| if (result == null) { |
| caller = sling.getScript().getScriptResource(); |
| result = ResourceResolution.getResourceFromSearchPath(caller, scriptIdentifier); |
| } |
| return result; |
| } |
| |
| } |