/
StorageOptions.java
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/
StorageOptions.java
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/*
* Copyright 2015 Google LLC
*
* 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.cloud.storage;
import static java.util.Objects.requireNonNull;
import com.google.cloud.NoCredentials;
import com.google.cloud.ServiceDefaults;
import com.google.cloud.ServiceOptions;
import com.google.cloud.ServiceRpc;
import com.google.cloud.TransportOptions;
import com.google.cloud.http.HttpTransportOptions;
import com.google.cloud.storage.spi.StorageRpcFactory;
import com.google.cloud.storage.spi.v1.HttpStorageRpc;
import com.google.cloud.storage.spi.v1.StorageRpc;
import com.google.common.base.MoreObjects;
import com.google.common.collect.ImmutableSet;
import java.util.Set;
public class StorageOptions extends ServiceOptions<Storage, StorageOptions> {
private static final long serialVersionUID = -2907268477247502947L;
private static final String API_SHORT_NAME = "Storage";
private static final String GCS_SCOPE = "https://www.googleapis.com/auth/devstorage.full_control";
private static final Set<String> SCOPES = ImmutableSet.of(GCS_SCOPE);
private static final String DEFAULT_HOST = "https://storage.googleapis.com";
private final RetryAlgorithmManager retryAlgorithmManager;
public static class DefaultStorageFactory implements StorageFactory {
private static final StorageFactory INSTANCE = new DefaultStorageFactory();
@Override
public Storage create(StorageOptions options) {
return new StorageImpl(options);
}
}
public static class DefaultStorageRpcFactory implements StorageRpcFactory {
private static final StorageRpcFactory INSTANCE = new DefaultStorageRpcFactory();
@Override
public ServiceRpc create(StorageOptions options) {
return new HttpStorageRpc(options);
}
}
public static class Builder extends ServiceOptions.Builder<Storage, StorageOptions, Builder> {
private StorageRetryStrategy storageRetryStrategy;
private Builder() {}
private Builder(StorageOptions options) {
super(options);
}
@Override
public Builder setTransportOptions(TransportOptions transportOptions) {
if (!(transportOptions instanceof HttpTransportOptions)) {
throw new IllegalArgumentException(
"Only http transport is allowed for " + API_SHORT_NAME + ".");
}
return super.setTransportOptions(transportOptions);
}
/**
* Override the default retry handling behavior with an alternate strategy.
*
* @param storageRetryStrategy a non-null storageRetryStrategy to use
* @return the builder
* @see StorageRetryStrategy#getDefaultStorageRetryStrategy()
*/
public Builder setStorageRetryStrategy(StorageRetryStrategy storageRetryStrategy) {
this.storageRetryStrategy =
requireNonNull(storageRetryStrategy, "storageRetryStrategy must be non null");
return this;
}
@Override
public StorageOptions build() {
return new StorageOptions(this, new StorageDefaults());
}
}
private StorageOptions(Builder builder, StorageDefaults serviceDefaults) {
super(StorageFactory.class, StorageRpcFactory.class, builder, serviceDefaults);
this.retryAlgorithmManager =
new RetryAlgorithmManager(
MoreObjects.firstNonNull(
builder.storageRetryStrategy, serviceDefaults.getStorageRetryStrategy()));
}
private static class StorageDefaults implements ServiceDefaults<Storage, StorageOptions> {
@Override
public StorageFactory getDefaultServiceFactory() {
return DefaultStorageFactory.INSTANCE;
}
@Override
public StorageRpcFactory getDefaultRpcFactory() {
return DefaultStorageRpcFactory.INSTANCE;
}
@Override
public TransportOptions getDefaultTransportOptions() {
return getDefaultHttpTransportOptions();
}
public StorageRetryStrategy getStorageRetryStrategy() {
return StorageRetryStrategy.getDefaultStorageRetryStrategy();
}
}
public static HttpTransportOptions getDefaultHttpTransportOptions() {
return HttpTransportOptions.newBuilder().build();
}
// Project ID is only required for creating buckets, so we don't require it for creating the
// service.
@Override
protected boolean projectIdRequired() {
return false;
}
@Override
protected Set<String> getScopes() {
return SCOPES;
}
protected StorageRpc getStorageRpcV1() {
return (StorageRpc) getRpc();
}
RetryAlgorithmManager getRetryAlgorithmManager() {
return retryAlgorithmManager;
}
/** Returns a default {@code StorageOptions} instance. */
public static StorageOptions getDefaultInstance() {
return newBuilder().build();
}
/** Returns a unauthenticated {@code StorageOptions} instance. */
public static StorageOptions getUnauthenticatedInstance() {
return newBuilder().setCredentials(NoCredentials.getInstance()).build();
}
@SuppressWarnings("unchecked")
@Override
public Builder toBuilder() {
return new Builder(this).setHost(DEFAULT_HOST);
}
@Override
public int hashCode() {
return baseHashCode();
}
@Override
public boolean equals(Object obj) {
return obj instanceof StorageOptions && baseEquals((StorageOptions) obj);
}
public static Builder newBuilder() {
return new Builder().setHost(DEFAULT_HOST);
}
}