org.cfr.restlet.ext.shindig.uri.PassthruManager.java Source code

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Here is the source code for org.cfr.restlet.ext.shindig.uri.PassthruManager.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.cfr.restlet.ext.shindig.uri;

import java.util.List;

import org.apache.shindig.common.uri.Uri;
import org.apache.shindig.common.uri.UriBuilder;
import org.apache.shindig.gadgets.GadgetException;
import org.apache.shindig.gadgets.uri.ProxyUriManager;
import org.apache.shindig.gadgets.uri.UriStatus;
import org.apache.shindig.gadgets.uri.UriCommon.Param;

import com.google.common.collect.Lists;
import com.google.inject.internal.ImmutableList;

public class PassthruManager implements ProxyUriManager {

    private UriStatus expectStatus = UriStatus.VALID_VERSIONED;

    private boolean doProxy = false;

    private String proxyHost = null;

    private String proxyPath = null;

    public PassthruManager() {
        // Regular no-proxy mode.
    }

    public PassthruManager(String proxyHost, String proxyPath) {
        this.proxyHost = proxyHost;
        this.proxyPath = proxyPath;
        this.doProxy = true;
    }

    public List<Uri> make(List<ProxyUri> resource, Integer forcedRefresh) {
        List<Uri> ctx = Lists.newArrayListWithCapacity(resource.size());
        for (ProxyUri res : resource) {
            ctx.add(getUri(res.getResource()));
        }
        return ImmutableList.copyOf(ctx);
    }

    private Uri getUri(Uri src) {
        if (!doProxy) {
            return src;
        }
        return new UriBuilder().setScheme("http").setAuthority(proxyHost).setPath(proxyPath)
                .addQueryParameter(Param.URL.getKey(), src.toString()).toUri();
    }

    public ProxyUri process(Uri uri) throws GadgetException {
        String proxied = uri.getQueryParameter(Param.URL.getKey());
        return new ProxyUri(expectStatus, proxied != null ? Uri.parse(proxied) : null, uri);
    }

    public void expectStatus(UriStatus status) {
        this.expectStatus = status;
    }
}