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/*
* 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.client;
import org.elasticsearch.ExceptionsHelper;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.GenericAction;
import org.elasticsearch.action.admin.cluster.reroute.ClusterRerouteAction;
import org.elasticsearch.action.admin.cluster.snapshots.create.CreateSnapshotAction;
import org.elasticsearch.action.admin.cluster.stats.ClusterStatsAction;
import org.elasticsearch.action.admin.indices.cache.clear.ClearIndicesCacheAction;
import org.elasticsearch.action.admin.indices.create.CreateIndexAction;
import org.elasticsearch.action.admin.indices.flush.FlushAction;
import org.elasticsearch.action.admin.indices.stats.IndicesStatsAction;
import org.elasticsearch.action.delete.DeleteAction;
import org.elasticsearch.action.get.GetAction;
import org.elasticsearch.action.index.IndexAction;
import org.elasticsearch.action.admin.cluster.storedscripts.DeleteStoredScriptAction;
import org.elasticsearch.action.search.SearchAction;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.util.concurrent.ThreadContext;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.env.Environment;
import org.elasticsearch.test.ESTestCase;
import org.elasticsearch.threadpool.ThreadPool;
import org.junit.After;
import org.junit.Before;
import java.util.HashMap;
import java.util.Map;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.notNullValue;
public abstract class AbstractClientHeadersTestCase extends ESTestCase {
protected static final Settings HEADER_SETTINGS = Settings.builder()
.put(ThreadContext.PREFIX + ".key1", "val1")
.put(ThreadContext.PREFIX + ".key2", "val 2")
.build();
private static final GenericAction[] ACTIONS = new GenericAction[] {
// client actions
GetAction.INSTANCE, SearchAction.INSTANCE, DeleteAction.INSTANCE, DeleteStoredScriptAction.INSTANCE,
IndexAction.INSTANCE,
// cluster admin actions
ClusterStatsAction.INSTANCE, CreateSnapshotAction.INSTANCE, ClusterRerouteAction.INSTANCE,
// indices admin actions
CreateIndexAction.INSTANCE, IndicesStatsAction.INSTANCE, ClearIndicesCacheAction.INSTANCE, FlushAction.INSTANCE
};
protected ThreadPool threadPool;
private Client client;
@Override
public void setUp() throws Exception {
super.setUp();
Settings settings = Settings.builder()
.put(HEADER_SETTINGS)
.put("path.home", createTempDir().toString())
.put("node.name", "test-" + getTestName())
.put(Environment.PATH_HOME_SETTING.getKey(), createTempDir().toString())
.build();
threadPool = new ThreadPool(settings);
client = buildClient(settings, ACTIONS);
}
@Override
public void tearDown() throws Exception {
super.tearDown();
client.close();
terminate(threadPool);
}
protected abstract Client buildClient(Settings headersSettings, GenericAction[] testedActions);
public void testActions() {
// TODO this is a really shitty way to test it, we need to figure out a way to test all the client methods
// without specifying each one (reflection doesn't as each action needs its own special settings, without
// them, request validation will fail before the test is executed. (one option is to enable disabling the
// validation in the settings??? - ugly and conceptually wrong)
// choosing arbitrary top level actions to test
client.prepareGet("idx", "type", "id").execute().addListener(new AssertingActionListener<>(GetAction.NAME, client.threadPool()));
client.prepareSearch().execute().addListener(new AssertingActionListener<>(SearchAction.NAME, client.threadPool()));
client.prepareDelete("idx", "type", "id").execute().addListener(new AssertingActionListener<>(DeleteAction.NAME, client.threadPool()));
client.admin().cluster().prepareDeleteStoredScript("lang", "id").execute().addListener(new AssertingActionListener<>(DeleteStoredScriptAction.NAME, client.threadPool()));
client.prepareIndex("idx", "type", "id").setSource("source", XContentType.JSON).execute().addListener(new AssertingActionListener<>(IndexAction.NAME, client.threadPool()));
// choosing arbitrary cluster admin actions to test
client.admin().cluster().prepareClusterStats().execute().addListener(new AssertingActionListener<>(ClusterStatsAction.NAME, client.threadPool()));
client.admin().cluster().prepareCreateSnapshot("repo", "bck").execute().addListener(new AssertingActionListener<>(CreateSnapshotAction.NAME, client.threadPool()));
client.admin().cluster().prepareReroute().execute().addListener(new AssertingActionListener<>(ClusterRerouteAction.NAME, client.threadPool()));
// choosing arbitrary indices admin actions to test
client.admin().indices().prepareCreate("idx").execute().addListener(new AssertingActionListener<>(CreateIndexAction.NAME, client.threadPool()));
client.admin().indices().prepareStats().execute().addListener(new AssertingActionListener<>(IndicesStatsAction.NAME, client.threadPool()));
client.admin().indices().prepareClearCache("idx1", "idx2").execute().addListener(new AssertingActionListener<>(ClearIndicesCacheAction.NAME, client.threadPool()));
client.admin().indices().prepareFlush().execute().addListener(new AssertingActionListener<>(FlushAction.NAME, client.threadPool()));
}
public void testOverrideHeader() throws Exception {
String key1Val = randomAsciiOfLength(5);
Map<String, String> expected = new HashMap<>();
expected.put("key1", key1Val);
expected.put("key2", "val 2");
client.threadPool().getThreadContext().putHeader("key1", key1Val);
client.prepareGet("idx", "type", "id")
.execute().addListener(new AssertingActionListener<>(GetAction.NAME, expected, client.threadPool()));
client.admin().cluster().prepareClusterStats()
.execute().addListener(new AssertingActionListener<>(ClusterStatsAction.NAME, expected, client.threadPool()));
client.admin().indices().prepareCreate("idx")
.execute().addListener(new AssertingActionListener<>(CreateIndexAction.NAME, expected, client.threadPool()));
}
protected static void assertHeaders(Map<String, String> headers, Map<String, String> expected) {
assertNotNull(headers);
assertEquals(expected.size(), headers.size());
for (Map.Entry<String, String> expectedEntry : expected.entrySet()) {
assertEquals(headers.get(expectedEntry.getKey()), expectedEntry.getValue());
}
}
protected static void assertHeaders(ThreadPool pool) {
assertHeaders(pool.getThreadContext().getHeaders(), (Map)HEADER_SETTINGS.getAsSettings(ThreadContext.PREFIX).getAsStructuredMap());
}
public static class InternalException extends Exception {
private final String action;
public InternalException(String action) {
this.action = action;
}
}
protected static class AssertingActionListener<T> implements ActionListener<T> {
private final String action;
private final Map<String, String> expectedHeaders;
private final ThreadPool pool;
public AssertingActionListener(String action, ThreadPool pool) {
this(action, (Map)HEADER_SETTINGS.getAsSettings(ThreadContext.PREFIX).getAsStructuredMap(), pool);
}
public AssertingActionListener(String action, Map<String, String> expectedHeaders, ThreadPool pool) {
this.action = action;
this.expectedHeaders = expectedHeaders;
this.pool = pool;
}
@Override
public void onResponse(T t) {
fail("an internal exception was expected for action [" + action + "]");
}
@Override
public void onFailure(Exception t) {
Throwable e = unwrap(t, InternalException.class);
assertThat("expected action [" + action + "] to throw an internal exception", e, notNullValue());
assertThat(action, equalTo(((InternalException) e).action));
Map<String, String> headers = pool.getThreadContext().getHeaders();
assertHeaders(headers, expectedHeaders);
}
public Throwable unwrap(Throwable t, Class<? extends Throwable> exceptionType) {
int counter = 0;
Throwable result = t;
while (!exceptionType.isInstance(result)) {
if (result.getCause() == null) {
return null;
}
if (result.getCause() == result) {
return null;
}
if (counter++ > 10) {
// dear god, if we got more than 10 levels down, WTF? just bail
fail("Exception cause unwrapping ran for 10 levels: " + ExceptionsHelper.stackTrace(t));
return null;
}
result = result.getCause();
}
return result;
}
}
}
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