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* 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.http;
import org.elasticsearch.client.node.NodeClient;
import org.elasticsearch.common.settings.Setting;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.rest.BaseRestHandler;
import org.elasticsearch.rest.BytesRestResponse;
import org.elasticsearch.rest.RestController;
import org.elasticsearch.rest.RestRequest;
import org.elasticsearch.rest.RestStatus;
import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Enables testing {@code DeprecationRestHandler} via integration tests by guaranteeing a deprecated REST endpoint.
* <p>
* This adds an endpoint named <code>/_test_cluster/deprecated_settings</code> that touches specified settings given their names
* and returns their values.
*/
public class TestDeprecationHeaderRestAction extends BaseRestHandler {
public static final Setting<Boolean> TEST_DEPRECATED_SETTING_TRUE1 =
Setting.boolSetting("test.setting.deprecated.true1", true,
Setting.Property.NodeScope, Setting.Property.Deprecated, Setting.Property.Dynamic);
public static final Setting<Boolean> TEST_DEPRECATED_SETTING_TRUE2 =
Setting.boolSetting("test.setting.deprecated.true2", true,
Setting.Property.NodeScope, Setting.Property.Deprecated, Setting.Property.Dynamic);
public static final Setting<Boolean> TEST_NOT_DEPRECATED_SETTING =
Setting.boolSetting("test.setting.not_deprecated", false,
Setting.Property.NodeScope, Setting.Property.Dynamic);
private static final Map<String, Setting<?>> SETTINGS;
static {
Map<String, Setting<?>> settingsMap = new HashMap<>(3);
settingsMap.put(TEST_DEPRECATED_SETTING_TRUE1.getKey(), TEST_DEPRECATED_SETTING_TRUE1);
settingsMap.put(TEST_DEPRECATED_SETTING_TRUE2.getKey(), TEST_DEPRECATED_SETTING_TRUE2);
settingsMap.put(TEST_NOT_DEPRECATED_SETTING.getKey(), TEST_NOT_DEPRECATED_SETTING);
SETTINGS = Collections.unmodifiableMap(settingsMap);
}
public static final String DEPRECATED_ENDPOINT = "[/_test_cluster/deprecated_settings] exists for deprecated tests";
public static final String DEPRECATED_USAGE = "[deprecated_settings] usage is deprecated. use [settings] instead";
public TestDeprecationHeaderRestAction(Settings settings, RestController controller) {
super(settings);
controller.registerAsDeprecatedHandler(RestRequest.Method.GET, "/_test_cluster/deprecated_settings", this,
DEPRECATED_ENDPOINT, deprecationLogger);
}
@SuppressWarnings("unchecked") // List<String> casts
@Override
public RestChannelConsumer prepareRequest(RestRequest request, NodeClient client) throws IOException {
final List<String> settings;
try (XContentParser parser = request.contentParser()) {
final Map<String, Object> source = parser.map();
if (source.containsKey("deprecated_settings")) {
deprecationLogger.deprecated(DEPRECATED_USAGE);
settings = (List<String>)source.get("deprecated_settings");
} else {
settings = (List<String>)source.get("settings");
}
}
return channel -> {
final XContentBuilder builder = channel.newBuilder();
builder.startObject().startArray("settings");
for (String setting : settings) {
builder.startObject().field(setting, SETTINGS.get(setting).getRaw(this.settings)).endObject();
}
builder.endArray().endObject();
channel.sendResponse(new BytesRestResponse(RestStatus.OK, builder));
};
}
}