/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.discovery.gce;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.LowLevelHttpRequest;
import com.google.api.client.http.LowLevelHttpResponse;
import com.google.api.client.json.Json;
import com.google.api.client.testing.http.MockHttpTransport;
import com.google.api.client.testing.http.MockLowLevelHttpRequest;
import com.google.api.client.testing.http.MockLowLevelHttpResponse;
import org.elasticsearch.cloud.gce.GceComputeServiceImpl;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.io.Streams;
import org.elasticsearch.common.network.NetworkService;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.util.Callback;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.security.GeneralSecurityException;
/**
*
*/
public class GceComputeServiceMock extends GceComputeServiceImpl {
protected HttpTransport mockHttpTransport;
private static final String GCE_METADATA_URL = "http://metadata.google.internal/computeMetadata/v1/instance";
public GceComputeServiceMock(Settings settings, NetworkService networkService) {
super(settings, networkService);
this.mockHttpTransport = configureMock();
}
@Override
protected HttpTransport getGceHttpTransport() throws GeneralSecurityException, IOException {
return this.mockHttpTransport;
}
protected HttpTransport configureMock() {
return new MockHttpTransport() {
@Override
public LowLevelHttpRequest buildRequest(String method, final String url) throws IOException {
return new MockLowLevelHttpRequest() {
@Override
public LowLevelHttpResponse execute() throws IOException {
MockLowLevelHttpResponse response = new MockLowLevelHttpResponse();
response.setStatusCode(200);
response.setContentType(Json.MEDIA_TYPE);
if (url.startsWith(GCE_METADATA_URL)) {
logger.info("--> Simulate GCE Auth/Metadata response for [{}]", url);
response.setContent(readGoogleInternalJsonResponse(url));
} else {
logger.info("--> Simulate GCE API response for [{}]", url);
response.setContent(readGoogleApiJsonResponse(url));
}
return response;
}
};
}
};
}
public static String readGoogleInternalJsonResponse(String url) throws IOException {
return readJsonResponse(url, "http://metadata.google.internal/");
}
public static String readGoogleApiJsonResponse(String url) throws IOException {
return readJsonResponse(url, "https://www.googleapis.com/");
}
public static String readJsonResponse(String url, String urlRoot) throws IOException {
// We extract from the url the mock file path we want to use
String mockFileName = Strings.replace(url, urlRoot, "");
URL resource = GceComputeServiceMock.class.getResource(mockFileName);
if (resource == null) {
throw new IOException("can't read [" + url + "] in src/test/resources/org/elasticsearch/discovery/gce");
}
try (InputStream is = resource.openStream()) {
final StringBuilder sb = new StringBuilder();
Streams.readAllLines(is, new Callback<String>() {
@Override
public void handle(String s) {
sb.append(s);
}
});
String response = sb.toString();
return response;
}
}
}