org.jclouds.s3.binders.BindAsHostPrefixIfConfigured.java Source code

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Here is the source code for org.jclouds.s3.binders.BindAsHostPrefixIfConfigured.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.jclouds.s3.binders;

import static org.jclouds.s3.reference.S3Constants.PROPERTY_S3_SERVICE_PATH;
import static org.jclouds.s3.reference.S3Constants.PROPERTY_S3_VIRTUAL_HOST_BUCKETS;

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import org.jclouds.http.HttpRequest;
import org.jclouds.rest.Binder;
import org.jclouds.rest.binders.BindAsHostPrefix;

import com.google.common.net.HttpHeaders;

@Singleton
public class BindAsHostPrefixIfConfigured implements Binder {

    protected final BindAsHostPrefix bindAsHostPrefix;
    protected final boolean isVhostStyle;
    protected final String servicePath;

    @Inject
    public BindAsHostPrefixIfConfigured(BindAsHostPrefix bindAsHostPrefix,
            @Named(PROPERTY_S3_VIRTUAL_HOST_BUCKETS) boolean isVhostStyle,
            @Named(PROPERTY_S3_SERVICE_PATH) String servicePath) {
        this.bindAsHostPrefix = bindAsHostPrefix;
        this.isVhostStyle = isVhostStyle;
        this.servicePath = servicePath;
    }

    @SuppressWarnings("unchecked")
    @Override
    public <R extends HttpRequest> R bindToRequest(R request, Object payload) {
        // If we have a payload/bucket/container that is not all lowercase, vhost-style URLs are not an option and must be
        // automatically converted to their path-based equivalent.  This should only be possible for AWS-S3 since it is
        // the only S3 implementation configured to allow uppercase payload/bucket/container names.
        //
        // http://code.google.com/p/jclouds/issues/detail?id=992
        String payloadAsString = payload.toString();

        if (isVhostStyle && payloadAsString.equals(payloadAsString.toLowerCase())) {
            request = bindAsHostPrefix.bindToRequest(request, payload);
            String host = request.getEndpoint().getHost();
            if (request.getEndpoint().getPort() != -1) {
                host += ":" + request.getEndpoint().getPort();
            }
            return (R) request.toBuilder().replaceHeader(HttpHeaders.HOST, host).build();
        } else {
            StringBuilder path = new StringBuilder(request.getEndpoint().getRawPath());
            if (servicePath.equals("/")) {
                if (path.toString().equals("/"))
                    path.append(payloadAsString);
                else
                    path.insert(0, "/" + payloadAsString);
            } else {
                int indexToInsert = 0;
                indexToInsert = path.indexOf(servicePath);
                indexToInsert = indexToInsert == -1 ? 0 : indexToInsert;
                indexToInsert += servicePath.length();
                path.insert(indexToInsert, "/" + payloadAsString);
            }
            return (R) request.toBuilder().replacePath(path.toString()).build();
        }
    }
}