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Subject [GitHub] [lucene-solr] chatman commented on a change in pull request #994: SOLR-13662: Package Manager (CLI)
Date Thu, 14 Nov 2019 11:29:39 GMT
chatman commented on a change in pull request #994: SOLR-13662: Package Manager (CLI)
URL: https://github.com/apache/lucene-solr/pull/994#discussion_r346261265
 
 

 ##########
 File path: solr/core/src/java/org/apache/solr/packagemanager/PackageManager.java
 ##########
 @@ -0,0 +1,415 @@
+/*
+ * 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.packagemanager;
+
+import static org.apache.solr.packagemanager.PackageUtils.getMapper;
+
+import java.io.Closeable;
+import java.io.IOException;
+import java.lang.invoke.MethodHandles;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Scanner;
+
+import org.apache.solr.client.solrj.impl.HttpSolrClient;
+import org.apache.solr.common.SolrException;
+import org.apache.solr.common.SolrException.ErrorCode;
+import org.apache.solr.common.cloud.SolrZkClient;
+import org.apache.solr.packagemanager.SolrPackage.Command;
+import org.apache.solr.packagemanager.SolrPackage.Manifest;
+import org.apache.solr.packagemanager.SolrPackage.Plugin;
+import org.apache.solr.pkg.PackagePluginHolder;
+import org.apache.solr.util.SolrCLI;
+import org.apache.zookeeper.KeeperException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.Strings;
+import com.jayway.jsonpath.JsonPath;
+import com.jayway.jsonpath.PathNotFoundException;
+
+/**
+ * Handles most of the management of packages that are already installed in Solr.
+ */
+public class PackageManager implements Closeable {
+
+  final String solrBaseUrl;
+  final HttpSolrClient solrClient;
+  final SolrZkClient zkClient;
+
+  private Map<String, List<SolrPackageInstance>> packages = null;
+
+  private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
+
+
+  public PackageManager(HttpSolrClient solrClient, String solrBaseUrl, String zkHost) {
+    this.solrBaseUrl = solrBaseUrl;
+    this.solrClient = solrClient;
+    this.zkClient = new SolrZkClient(zkHost, 30000);
+    log.info("Done initializing a zkClient instance...");
+  }
+
+  @Override
+  public void close() throws IOException {
+    if (zkClient != null) {
+      zkClient.close();
+    }
+  }
+
+  public List<SolrPackageInstance> fetchInstalledPackageInstances() throws SolrException
{
+    log.info("Getting packages from packages.json...");
+    List<SolrPackageInstance> ret = new ArrayList<SolrPackageInstance>();
+    packages = new HashMap<String, List<SolrPackageInstance>>();
+    try {
+      Map packagesZnodeMap = null;
+
+      if (zkClient.exists("/packages.json", true) == true) {
+        packagesZnodeMap = (Map)getMapper().readValue(
+            new String(zkClient.getData("/packages.json", null, null, true), "UTF-8"), Map.class).get("packages");
+        for (Object packageName: packagesZnodeMap.keySet()) {
+          List pkg = (List)packagesZnodeMap.get(packageName);
+          for (Map pkgVersion: (List<Map>)pkg) {
+            Manifest manifest = PackageUtils.fetchManifest(solrClient, solrBaseUrl, pkgVersion.get("manifest").toString(),
pkgVersion.get("manifestSHA512").toString());
+            List<Plugin> solrplugins = manifest.plugins;
+            SolrPackageInstance pkgInstance = new SolrPackageInstance(packageName.toString(),
null, 
+                pkgVersion.get("version").toString(), manifest, solrplugins, manifest.parameterDefaults);
+            List<SolrPackageInstance> list = packages.containsKey(packageName)? packages.get(packageName):
new ArrayList<SolrPackageInstance>();
+            list.add(pkgInstance);
+            packages.put(packageName.toString(), list);
+            ret.add(pkgInstance);
+          }
+        }
+      }
+    } catch (Exception e) {
+      throw new SolrException(ErrorCode.BAD_REQUEST, e);
+    }
+    log.info("Got packages: "+ret);
+    return ret;
+  }
+
+  public Map<String, SolrPackageInstance> getPackagesDeployed(String collection) {
+    String paramsJson = PackageUtils.getJsonStringFromUrl(solrClient.getHttpClient(), solrBaseUrl+"/api/collections/"+collection+"/config/params/PKG_VERSIONS?omitHeader=true");
 
 Review comment:
   Makes the code look ugly, but done this anyway.

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