/*
* Copyright 2012 Google Inc. All Rights Reserved.
*
* Licensed 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 com.google.appengine.tools.cloudstorage;
import com.google.appengine.api.urlfetch.HTTPHeader;
import com.google.appengine.api.utils.SystemProperty;
import com.google.appengine.api.utils.SystemProperty.Environment.Value;
import com.google.appengine.tools.cloudstorage.dev.LocalRawGcsServiceFactory;
import com.google.appengine.tools.cloudstorage.oauth.OauthRawGcsServiceFactory;
import com.google.apphosting.api.ApiProxy;
import com.google.apphosting.api.ApiProxy.Delegate;
import com.google.common.collect.ImmutableSet;
import java.util.Map;
/**
* Provides implementations of {@link GcsService}.
*/
public final class GcsServiceFactory {
private GcsServiceFactory() {}
public static GcsService createGcsService(RetryParams params) {
return createGcsService(new GcsServiceOptions.Builder().setRetryParams(params).build());
}
public static GcsService createGcsService(GcsServiceOptions options) {
RawGcsService rawGcsService = createRawGcsService(options.getHttpHeaders());
return new GcsServiceImpl(rawGcsService, options);
}
static RawGcsService createRawGcsService(Map<String, String> headers) {
ImmutableSet.Builder<HTTPHeader> builder = ImmutableSet.builder();
if (headers != null) {
for (Map.Entry<String, String> header : headers.entrySet()) {
builder.add(new HTTPHeader(header.getKey(), header.getValue()));
}
}
RawGcsService rawGcsService;
Value location = SystemProperty.environment.value();
if (location == SystemProperty.Environment.Value.Production) {
rawGcsService = OauthRawGcsServiceFactory.createOauthRawGcsService(builder.build());
} else if (location == SystemProperty.Environment.Value.Development) {
rawGcsService = LocalRawGcsServiceFactory.createLocalRawGcsService();
} else {
Delegate<?> delegate = ApiProxy.getDelegate();
if (delegate == null
|| delegate.getClass().getName().startsWith("com.google.appengine.tools.development")) {
rawGcsService = LocalRawGcsServiceFactory.createLocalRawGcsService();
} else {
rawGcsService = OauthRawGcsServiceFactory.createOauthRawGcsService(builder.build());
}
}
return rawGcsService;
}
public static GcsService createGcsService() {
return createGcsService(RetryParams.getDefaultInstance());
}
}