Package org.apache.flex.compiler.internal.tree.mxml

Source Code of org.apache.flex.compiler.internal.tree.mxml.MXMLHTTPServiceNode

/*
*
*  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.flex.compiler.internal.tree.mxml;

import org.apache.flex.compiler.definitions.IClassDefinition;
import org.apache.flex.compiler.definitions.IDefinition;
import org.apache.flex.compiler.internal.projects.FlexProject;
import org.apache.flex.compiler.internal.tree.as.NodeBase;
import org.apache.flex.compiler.tree.ASTNodeID;
import org.apache.flex.compiler.tree.mxml.IMXMLHTTPServiceNode;

/**
* AST node for {@code <s:HTTPService>} tags. An {@code HTTPService} tag has a
* special child tag {@code <s:request>} which defines an object literal but not
* using the object literal MXML convention.
* <p>
* For example:
*
* <pre>
* &lt;s:request xmlns=""&gt;
*     &lt;username&gt;John&lt;/username&gt;
*     &lt;password&gt;1234&lt;/password&gt;
* &lt;/s:request&gt;
* </pre>
*
* This "request" tag defines an object literal:
*
* <pre>
* httpService.request = { username:"John", password:"1234" };
* </pre>
*
* The purpose of this node is solely to special-case the
* {@code MXMLPropertySpecifierNode} creation logic, so that a
* {@code MXMLHTTPServiceRequestPropertyNode} is created for a
* {@code <s:request>} tag.
*/
class MXMLHTTPServiceNode extends MXMLInstanceNode implements IMXMLHTTPServiceNode
{

    private static final String TAG_REQUEST = "request";

    /**
     * Create an AST node for {@code <s:HTTPService>} tag.
     *
     * @param parent Parent node.
     */
    MXMLHTTPServiceNode(NodeBase parent)
    {
        super(parent);
    }

    @Override
    public ASTNodeID getNodeID()
    {
        return ASTNodeID.MXMLHTTPServiceID;
    }

    /**
     * Create special {@link MXMLHTTPServiceRequestPropertyNode} for
     * {@code <s:request>} tag. Otherwise, fall-back to the normal creation
     * logic.
     */
    @Override
    protected final MXMLSpecifierNodeBase createSpecifierNode(MXMLTreeBuilder builder, String specifierName)
    {
        if (TAG_REQUEST.equals(specifierName))
        {
            final FlexProject project = builder.getProject();
            final IClassDefinition classHTTPService = getClassReference(project);
            final IDefinition definitionRequest = project.resolveSpecifier(classHTTPService, TAG_REQUEST);
            if (definitionRequest != null)
            {
                final MXMLHTTPServiceRequestPropertyNode requestPropertyNode = new MXMLHTTPServiceRequestPropertyNode(this);
                requestPropertyNode.setDefinition(definitionRequest);
                return requestPropertyNode;
            }
        }
        return super.createSpecifierNode(builder, specifierName);
    }
}
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