org.apache.olingo.fit.rest.ResolvingReferencesInterceptor.java Source code

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Here is the source code for org.apache.olingo.fit.rest.ResolvingReferencesInterceptor.java

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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.olingo.fit.rest;

import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URLDecoder;

import org.apache.commons.lang3.StringUtils;
import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.message.Message;
import org.apache.cxf.phase.AbstractPhaseInterceptor;
import org.apache.cxf.phase.Phase;

public class ResolvingReferencesInterceptor extends AbstractPhaseInterceptor<Message> {

    public ResolvingReferencesInterceptor() {
        super(Phase.PRE_PROTOCOL);
    }

    @Override
    public void handleMessage(final Message message) throws Fault {
        final String path = (String) message.get(Message.PATH_INFO);
        final String query = (String) message.get(Message.QUERY_STRING);

        try {
            if (path.endsWith("$entity") && StringUtils.isNotBlank(query)
                    && URLDecoder.decode(query, "UTF-8").contains("$id=")) {

                final String id = URLDecoder.decode(query, "UTF-8");
                final String newURL = id.substring(id.indexOf("$id=") + 4);

                final URI uri = URI.create(newURL);

                message.put(Message.REQUEST_URL, uri.toASCIIString());
                message.put(Message.REQUEST_URI, uri.getPath());
                message.put(Message.PATH_INFO, uri.getPath());
            }
        } catch (UnsupportedEncodingException ignore) {
            // ignore
        }
    }
}