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Posted to commits@lucene.apache.org by no...@apache.org on 2019/11/19 07:05:39 UTC
[lucene-solr] branch master updated: SOLR-13942: /api/cluster/zk/*
to fetch raw ZK data
This is an automated email from the ASF dual-hosted git repository.
noble pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/lucene-solr.git
The following commit(s) were added to refs/heads/master by this push:
new 935a298 SOLR-13942: /api/cluster/zk/* to fetch raw ZK data
935a298 is described below
commit 935a2987f8677dae79b360ec50630a42ec8473c3
Author: noble <no...@apache.org>
AuthorDate: Tue Nov 19 18:05:18 2019 +1100
SOLR-13942: /api/cluster/zk/* to fetch raw ZK data
---
.../java/org/apache/solr/core/CoreContainer.java | 2 +
.../java/org/apache/solr/handler/admin/ZkRead.java | 117 +++++++++++++++++++++
2 files changed, 119 insertions(+)
diff --git a/solr/core/src/java/org/apache/solr/core/CoreContainer.java b/solr/core/src/java/org/apache/solr/core/CoreContainer.java
index 62a0ce9..1e51137 100644
--- a/solr/core/src/java/org/apache/solr/core/CoreContainer.java
+++ b/solr/core/src/java/org/apache/solr/core/CoreContainer.java
@@ -92,6 +92,7 @@ import org.apache.solr.handler.admin.MetricsHistoryHandler;
import org.apache.solr.handler.admin.SecurityConfHandler;
import org.apache.solr.handler.admin.SecurityConfHandlerLocal;
import org.apache.solr.handler.admin.SecurityConfHandlerZk;
+import org.apache.solr.handler.admin.ZkRead;
import org.apache.solr.handler.admin.ZookeeperInfoHandler;
import org.apache.solr.handler.admin.ZookeeperStatusHandler;
import org.apache.solr.handler.component.ShardHandlerFactory;
@@ -741,6 +742,7 @@ public class CoreContainer {
fieldCacheBean.initializeMetrics(solrMetricsContext, null);
if (isZooKeeperAware()) {
+ containerHandlers.getApiBag().register(new AnnotatedApi(new ZkRead(this)), Collections.EMPTY_MAP);
metricManager.loadClusterReporters(metricReporters, this);
packageLoader = new PackageLoader(this);
containerHandlers.getApiBag().register(new AnnotatedApi(packageLoader.getPackageAPI().editAPI), Collections.EMPTY_MAP);
diff --git a/solr/core/src/java/org/apache/solr/handler/admin/ZkRead.java b/solr/core/src/java/org/apache/solr/handler/admin/ZkRead.java
new file mode 100644
index 0000000..4619b14
--- /dev/null
+++ b/solr/core/src/java/org/apache/solr/handler/admin/ZkRead.java
@@ -0,0 +1,117 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF 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.apache.solr.handler.admin;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.solr.api.Command;
+import org.apache.solr.api.EndPoint;
+import org.apache.solr.client.solrj.SolrRequest;
+import org.apache.solr.client.solrj.impl.BinaryResponseParser;
+import org.apache.solr.common.MapWriter;
+import org.apache.solr.common.params.CommonParams;
+import org.apache.solr.common.params.MapSolrParams;
+import org.apache.solr.common.params.SolrParams;
+import org.apache.solr.common.util.ContentStreamBase;
+import org.apache.solr.common.util.Utils;
+import org.apache.solr.core.CoreContainer;
+import org.apache.solr.request.SolrQueryRequest;
+import org.apache.solr.response.SolrQueryResponse;
+import org.apache.zookeeper.data.Stat;
+
+import static org.apache.solr.common.params.CommonParams.OMIT_HEADER;
+import static org.apache.solr.common.params.CommonParams.WT;
+import static org.apache.solr.response.RawResponseWriter.CONTENT;
+import static org.apache.solr.security.PermissionNameProvider.Name.COLL_READ_PERM;
+
+/**Exposes the content of the Zookeeper
+ *
+ */
+@EndPoint(path = "/cluster/zk/*",
+ method = SolrRequest.METHOD.GET,
+ permission = COLL_READ_PERM)
+public class ZkRead {
+ private final CoreContainer coreContainer;
+
+ public ZkRead(CoreContainer coreContainer) {
+ this.coreContainer = coreContainer;
+ }
+
+ @Command
+ public void get(SolrQueryRequest req, SolrQueryResponse rsp) {
+ String path = req.getPathTemplateValues().get("*");
+ if (path == null || path.isEmpty()) path = "/";
+ byte[] d = null;
+ try {
+ List<String> l = coreContainer.getZkController().getZkClient().getChildren(path, null, false);
+ if (l != null && !l.isEmpty()) {
+ String prefix = path.endsWith("/") ? path : path + "/";
+
+ rsp.add(path, (MapWriter) ew -> {
+ for (String s : l) {
+ try {
+ Stat stat = coreContainer.getZkController().getZkClient().exists(prefix + s, null, false);
+ ew.put(s, (MapWriter) ew1 -> {
+ ew1.put("version", stat.getVersion());
+ ew1.put("aversion", stat.getAversion());
+ ew1.put("children", stat.getNumChildren());
+ ew1.put("ctime", stat.getCtime());
+ ew1.put("cversion", stat.getCversion());
+ ew1.put("czxid", stat.getCzxid());
+ ew1.put("ephemeralOwner", stat.getEphemeralOwner());
+ ew1.put("mtime", stat.getMtime());
+ ew1.put("mzxid", stat.getMzxid());
+ ew1.put("pzxid", stat.getPzxid());
+ ew1.put("dataLength", stat.getDataLength());
+ });
+ } catch (Exception e) {
+ ew.put("s", Collections.singletonMap("error", e.getMessage()));
+ }
+ }
+ });
+
+ } else {
+ d = coreContainer.getZkController().getZkClient().getData(path, null, null, false);
+ if (d == null || d.length == 0) {
+ rsp.add(path, null);
+ return;
+ }
+
+ Map<String, String> map = new HashMap<>(1);
+ map.put(WT, "raw");
+ map.put(OMIT_HEADER, "true");
+ req.setParams(SolrParams.wrapDefaults(new MapSolrParams(map), req.getParams()));
+
+
+ rsp.add(CONTENT, new ContentStreamBase.ByteArrayStream(d, null,
+ d[0] == '{' ? CommonParams.JSON_MIME : BinaryResponseParser.BINARY_CONTENT_TYPE));
+
+ }
+
+ } catch (Exception e) {
+ rsp.add(CONTENT, new ContentStreamBase.StringStream(Utils.toJSONString(Collections.singletonMap("error", e.getMessage()))));
+ }
+ }
+
+ public static void main(String[] args) {
+ }
+
+}