[EQK-29] Added Query Statistic Page

core/src/main/java/com/exadel/etoolbox/querykit/core/models/query/QueryStatisticModel.java

@@ -0,0 +1,256 @@
+package com.exadel.etoolbox.querykit.core.models.query;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import lombok.Getter;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.sling.api.SlingHttpServletRequest;
+import org.apache.sling.api.resource.Resource;
+import org.apache.sling.api.resource.ResourceResolver;
+import org.apache.sling.models.annotations.Model;
+import org.apache.sling.models.annotations.injectorspecific.SlingObject;
+
+import javax.annotation.PostConstruct;
+import javax.jcr.RepositoryException;
+import javax.jcr.Session;
+import javax.jcr.query.Query;
+import javax.jcr.query.QueryManager;
+import javax.jcr.query.QueryResult;
+import javax.jcr.query.Row;
+import javax.management.MBeanServerConnection;
+import javax.management.MalformedObjectNameException;
+import javax.management.ObjectName;
+import java.io.IOException;
+import java.lang.management.ManagementFactory;
+import java.util.*;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import java.util.stream.StreamSupport;
+
+@Model(adaptables = SlingHttpServletRequest.class)
+@Getter
+public class QueryStatisticModel {
+
+    private static final Pattern PROPERTY_INDEX_PATTERN = Pattern.compile("/\\*\\sproperty\\s([^\\s=]+)[=\\s]");
+    private static final Pattern LUCENE_INDEX_PATTERN = Pattern.compile("/\\*\\slucene:([^\\s*]+)[\\s*]");
+
+    private static final String OAK_INDEX_PREFIX = "/oak:index";
+    private static final String STRIP_CHARS = " /";
+
+    @SlingObject
+    private ResourceResolver resourceResolver;
+
+    private List<QueryStatisticModel.QueryInfo> allQueries;
+    private Map<String, Integer> indexesByUsage = new LinkedHashMap<>();
+    private Map<String, List<QueryStatisticModel.QueryInfo>> queriesByIndex = new HashMap<>();
+    private LinkedHashMap<String, List<QueryStatisticModel.QueryInfo>> queriesByIndexSorted = new LinkedHashMap<>();
+
+    @PostConstruct
+    protected void init() throws IOException {
+
+        QueryManager queryManager = getQueryManager(resourceResolver);
+        MBeanServerConnection server = ManagementFactory.getPlatformMBeanServer();
+
+        allQueries = getQueryInfo(server, queryManager);
+
+        for (QueryStatisticModel.QueryInfo queryInfo : allQueries) {
+            if (queryInfo.getIndexes().isEmpty()) {
+                continue;
+            }
+            queryInfo.getIndexes().forEach(index -> queriesByIndex.computeIfAbsent(index, k -> new ArrayList<>()).add(queryInfo));
+        }
+
+        queriesByIndex.entrySet().stream()
+                .sorted((a, b) -> Integer.compare(a.getValue().size(), b.getValue().size()) * -1)
+                .forEach(entry -> queriesByIndexSorted.put(entry.getKey(), entry.getValue()));
+
+        getIndexes(resourceResolver).forEach(index -> indexesByUsage.put(
+                index,
+                queriesByIndex.entrySet().stream()
+                        .filter(entry -> {
+                            String indexId = getIndexId(index);
+                            return entry.getKey().equals(indexId) || entry.getKey().endsWith(indexId + ")");
+                        })
+                        .map(entry -> entry.getValue().size())
+                        .findFirst().orElse(0)));
+    }
+
+    private QueryManager getQueryManager(ResourceResolver resourceResolver) {
+        Session session = resourceResolver.adaptTo(Session.class);
+        if (session == null) {
+            return null;
+        }
+        try {
+            return session.getWorkspace().getQueryManager();
+        } catch (RepositoryException e) {
+            return null;
+        }
+    }
+
+    private List<QueryStatisticModel.QueryInfo> getQueryInfo(MBeanServerConnection server, QueryManager queryManager) {
+        ObjectName queryStatMbean = getQueryStatMBean(server);
+        if (queryStatMbean == null || queryManager == null) {
+            return Collections.emptyList();
+        }
+        String jsonRaw;
+        List<QueryStatisticModel.QueryInfo> result = new ArrayList<>();
+
+        try {
+            jsonRaw = server.invoke(queryStatMbean, "asJson", null, null).toString();
+
+        } catch (Exception e) {
+            return Collections.emptyList();
+        }
+
+        JsonParser jsonParser = new JsonParser();
+        JsonArray queries = jsonParser.parse(jsonRaw).getAsJsonArray();
+
+        for(int i = 0; i < queries.size(); i++) {
+            JsonObject jsonObject = queries.get(i).getAsJsonObject();
+            String statement = getAsString(jsonObject, "query");
+            if (StringUtils.contains(statement, "oak-internal") || StringUtils.startsWithIgnoreCase(statement, "explain ")) {
+                continue;
+            }
+            String language = getAsString(jsonObject, "language");
+            String thread = getAsString(jsonObject, "lastThreadName");
+            String lastExecuted = getAsString(jsonObject, "lastExecutedMillis");
+            int executeCount = getAsInt(jsonObject, "executeCount");
+
+            QueryStatisticModel.QueryInfo queryInfo = new QueryStatisticModel.QueryInfo(queryManager);
+            queryInfo.setLanguage(language);
+            queryInfo.setStatement(statement);
+            queryInfo.setTheadName(thread);
+            queryInfo.setExecuteCount(executeCount);
+            queryInfo.setLastExecuted(lastExecuted);
+            result.add(queryInfo);
+        }
+        result.sort((a, b) -> Integer.compare(a.getExecuteCount(), b.getExecuteCount()) * -1);
+        return result;
+    }
+
+    private ObjectName getQueryStatMBean(MBeanServerConnection server) {
+        try {
+            Set<ObjectName> names = server.queryNames(new ObjectName("org.apache.jackrabbit.oak:type=QueryStats,*"), null);
+            return names.iterator().next();
+        } catch (IOException | MalformedObjectNameException | NoSuchElementException e) {
+            return null;
+        }
+    }
+
+    private List<String> getIndexes(ResourceResolver resourceResolver) {
+        Resource oakIndex = resourceResolver.getResource(OAK_INDEX_PREFIX);
+        if (oakIndex == null || !oakIndex.hasChildren()) {
+            return Collections.emptyList();
+        }
+        return StreamSupport.stream(oakIndex.getChildren().spliterator(), false)
+                .map(Resource::getPath)
+                .sorted()
+                .collect(Collectors.toList());
+    }
+
+    private String getIndexId(String value) {
+        if (value.contains("(") && value.contains(")")) {
+            return StringUtils.substringBefore(value, "(").trim();
+        } else if (StringUtils.containsIgnoreCase(value, OAK_INDEX_PREFIX)) {
+            return StringUtils.strip(StringUtils.substringAfter(value, OAK_INDEX_PREFIX), STRIP_CHARS);
+        }
+        return StringUtils.strip(value, STRIP_CHARS);
+    }
+
+    private String getAsString(JsonObject object, String property) {
+        try {
+            return object.get(property).getAsString();
+        } catch (UnsupportedOperationException e) {
+            return StringUtils.EMPTY;
+        }
+    }
+
+    private int getAsInt(JsonObject object, String property) {
+        try {
+            return object.get(property).getAsInt();
+        } catch (UnsupportedOperationException e) {
+            return 0;
+        }
+    }
+
+    public static class QueryInfo {
+        private QueryManager queryManager;
+        private String statement;
+        private String language;
+        private String threadName;
+        private String lastExecuted;
+        private int executeCount;
+        private Set<String> indexes;
+
+        private QueryInfo(QueryManager queryManager) {
+            this.queryManager = queryManager;
+        }
+
+        public String getStatement() {
+            return statement;
+        }
+        private void setStatement(String value) {
+            statement = value;
+        }
+
+        public String getLanguage() {
+            return language;
+        }
+        private void setLanguage(String value) {
+            language = value;
+        }
+
+        public String getThreadName() {
+            return threadName;
+        }
+        private void setTheadName(String value) {
+            threadName = value;
+        }
+
+        public String getLastExecuted() {
+            return lastExecuted;
+        }
+        private void setLastExecuted(String value) {
+            lastExecuted = value;
+        }
+
+        public int getExecuteCount() {
+            return executeCount;
+        }
+        private void setExecuteCount(int value) {
+            executeCount = value;
+        }
+
+        public Set<String> getIndexes() throws IOException {
+            if (indexes != null) {
+                return indexes;
+            }
+            try {
+                indexes = new HashSet<>();
+                Query query = queryManager.createQuery("explain " + statement, language);
+                QueryResult queryResult = query.execute();
+                Row row = queryResult.getRows().nextRow();
+                String queryPlan = row.getValue("plan").getString();
+
+                Stream.of(PROPERTY_INDEX_PATTERN, LUCENE_INDEX_PATTERN).forEach(pattern -> {
+                    Matcher matcher = pattern.matcher(queryPlan);
+                    while (matcher.find()) {
+                        indexes.add(matcher.group(1).trim().replaceAll("\\(.+\\)", StringUtils.EMPTY));
+                    }
+                });
+            } catch (Exception e) {
+                indexes = Collections.emptySet();
+            }
+            return indexes;
+        }
+    }
+
+    public Map<String, Integer> getIndexesByUsage() {
+        Map<String,Integer> map = new LinkedHashMap<>();
+        indexesByUsage.forEach((key, value) -> map.put(StringUtils.removeStart(key, "/oak:index/"), value));
+        return map;
+    }
+}

ui.apps/src/main/content/jcr_root/apps/etoolbox-query-kit/components/console/queryStatistic/.content.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<jcr:root xmlns:sling="http://sling.apache.org/jcr/sling/1.0" xmlns:granite="http://www.adobe.com/jcr/granite/1.0" xmlns:cq="http://www.day.com/jcr/cq/1.0" xmlns:jcr="http://www.jcp.org/jcr/1.0" xmlns:nt="http://www.jcp.org/jcr/nt/1.0"
+          jcr:primaryType="cq:Page">
+    <jcr:content
+            jcr:mixinTypes="[sling:VanityPath]"
+            jcr:primaryType="nt:unstructured"
+            jcr:title="Oak Query Index Usage"
+            sling:vanityPath="/etoolbox-query-kit/oak-query-index-usage"
+            sling:resourceType="granite/ui/components/shell/page">
+        <head jcr:primaryType="nt:unstructured">
+            <clientlibs
+                    jcr:primaryType="nt:unstructured"
+                    sling:resourceType="granite/ui/components/coral/foundation/includeclientlibs"
+                    categories="[cq.common.wcm,cq.listview.coral.columns.personalization,cq.siteadmin.admin.page.row,cq.gui.coral.common.admin.references,cq.screens.dcc,etoolbox-query-kit.queryStatistic]"/>
+        </head>
+        <title
+                jcr:primaryType="nt:unstructured"
+                sling:resourceType="granite/ui/components/coral/foundation/text"
+                text="Oak Query Index Usage"/>
+        <content
+                jcr:primaryType="nt:unstructured"
+                sling:resourceType="granite/ui/components/coral/foundation/container"
+                margin="{Boolean}true">
+            <items jcr:primaryType="nt:unstructured">
+                <result
+                        jcr:primaryType="nt:unstructured"
+                        sling:resourceType="/apps/etoolbox-query-kit/components/console/queryStatistic"/>
+            </items>
+        </content>
+    </jcr:content>
+</jcr:root>

ui.apps/src/main/content/jcr_root/apps/etoolbox-query-kit/components/console/queryStatistic/clientlibs/.content.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<jcr:root xmlns:cq="http://www.day.com/jcr/cq/1.0" xmlns:jcr="http://www.jcp.org/jcr/1.0"
+          jcr:primaryType="cq:ClientLibraryFolder"
+          categories="[etoolbox-query-kit.queryStatistic]"
+          dependencies="[coralui2,moment]"
+          jsProcessor="[min:gcc;languageIn=ECMASCRIPT_2015,compilationLevel=advanced,languageOut=ECMASCRIPT5]"/>

ui.apps/src/main/content/jcr_root/apps/etoolbox-query-kit/components/console/queryStatistic/clientlibs/css.txt

@@ -0,0 +1,2 @@
+#base=css
+main-layout.css

ui.apps/src/main/content/jcr_root/apps/etoolbox-query-kit/components/console/queryStatistic/clientlibs/css/main-layout.css

@@ -0,0 +1,21 @@
+/*
+ * Licensed 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.
+ */
+.foundation-layout-panel-content {
+    padding-left: 20px;
+    padding-right: 20px;
+}
+
+.query-statistic-headlines {
+    text-align: center;
+}