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The Adobe Experience Manager SDK
/*
* 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.jackrabbit.oak.plugins.index;
import static org.apache.jackrabbit.guava.common.base.Preconditions.checkArgument;
import static org.apache.jackrabbit.JcrConstants.JCR_PRIMARYTYPE;
import static org.apache.jackrabbit.JcrConstants.NT_UNSTRUCTURED;
import static org.apache.jackrabbit.oak.api.Type.NAME;
import static org.apache.jackrabbit.oak.api.Type.NAMES;
import static org.apache.jackrabbit.oak.api.Type.STRING;
import static org.apache.jackrabbit.oak.plugins.index.IndexConstants.DECLARING_NODE_TYPES;
import static org.apache.jackrabbit.oak.plugins.index.IndexConstants.INDEX_DEFINITIONS_NAME;
import static org.apache.jackrabbit.oak.plugins.index.IndexConstants.INDEX_DEFINITIONS_NODE_TYPE;
import static org.apache.jackrabbit.oak.plugins.index.IndexConstants.PROPERTY_NAMES;
import static org.apache.jackrabbit.oak.plugins.index.IndexConstants.REINDEX_PROPERTY_NAME;
import static org.apache.jackrabbit.oak.plugins.index.IndexConstants.TYPE_PROPERTY_NAME;
import static org.apache.jackrabbit.oak.plugins.index.IndexConstants.UNIQUE_PROPERTY_NAME;
import java.util.Collection;
import java.util.Comparator;
import java.util.Map;
import java.util.Set;
import java.util.LinkedHashMap;
import java.util.function.Predicate;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import java.util.stream.StreamSupport;
import javax.jcr.RepositoryException;
import org.apache.jackrabbit.guava.common.collect.ImmutableList;
import org.apache.jackrabbit.guava.common.collect.Iterables;
import org.apache.jackrabbit.oak.api.PropertyState;
import org.apache.jackrabbit.oak.api.Tree;
import org.apache.jackrabbit.oak.api.Type;
import org.apache.jackrabbit.oak.commons.collections.CollectionUtils;
import org.apache.jackrabbit.oak.plugins.index.property.PropertyIndexEditorProvider;
import org.apache.jackrabbit.oak.plugins.index.reference.NodeReferenceConstants;
import org.apache.jackrabbit.oak.plugins.memory.PropertyStates;
import org.apache.jackrabbit.oak.spi.state.NodeBuilder;
import org.apache.jackrabbit.oak.spi.state.NodeState;
import org.apache.jackrabbit.oak.plugins.tree.TreeUtil;
import org.apache.jackrabbit.oak.spi.state.NodeStore;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* TODO document
*/
public final class IndexUtils {
private IndexUtils() {
}
// Logger used for START/END/FAIL messages of indexing phases. Logged in a separate logger to make them easier to
// identify and parse by log analysis tools.
public static final Logger INDEXING_PHASE_LOGGER = LoggerFactory.getLogger("indexing-task");
public static NodeBuilder getOrCreateOakIndex(NodeBuilder root) {
NodeBuilder index;
if (!root.hasChildNode(INDEX_DEFINITIONS_NAME)) {
index = root.child(INDEX_DEFINITIONS_NAME);
// TODO: use property node type name
index.setProperty(JCR_PRIMARYTYPE, NT_UNSTRUCTURED, NAME);
} else {
index = root.child(INDEX_DEFINITIONS_NAME);
}
return index;
}
/**
* Create a new property index definition below the given {@code indexNode}.
*
* @param index The oak:index node builder
* @param indexDefName The name of the new property index.
* @param reindex {@code true} if the the reindex flag should be turned on.
* @param unique {@code true} if the index is expected the assert property
* uniqueness.
* @param propertyNames The property names that should be indexed.
* @param declaringNodeTypeNames The declaring node type names or {@code null}.
* @return the NodeBuilder of the new index definition.
*/
public static NodeBuilder createIndexDefinition(@NotNull NodeBuilder index,
@NotNull String indexDefName,
boolean reindex,
boolean unique,
@NotNull Collection propertyNames,
@Nullable Collection declaringNodeTypeNames) {
NodeBuilder entry = index.child(indexDefName)
.setProperty(JCR_PRIMARYTYPE, INDEX_DEFINITIONS_NODE_TYPE, NAME)
.setProperty(TYPE_PROPERTY_NAME, PropertyIndexEditorProvider.TYPE)
.setProperty(REINDEX_PROPERTY_NAME, reindex);
if (unique) {
entry.setProperty(UNIQUE_PROPERTY_NAME, unique);
}
entry.setProperty(PropertyStates.createProperty(PROPERTY_NAMES, propertyNames, NAMES));
if (declaringNodeTypeNames != null && !declaringNodeTypeNames.isEmpty()) {
entry.setProperty(PropertyStates.createProperty(DECLARING_NODE_TYPES, declaringNodeTypeNames, NAMES));
}
return entry;
}
/**
* Create a new property2 index definition below the given {@code indexNode}.
*
* @param indexNode
* @param indexDefName
* @param unique
* @param propertyNames
* @param declaringNodeTypeNames
*/
public static Tree createIndexDefinition(@NotNull Tree indexNode,
@NotNull String indexDefName,
boolean unique,
@NotNull String[] propertyNames,
@NotNull String... declaringNodeTypeNames) throws RepositoryException {
return createIndexDefinition(indexNode, indexDefName, unique, ImmutableList.copyOf(propertyNames), ImmutableList.copyOf(declaringNodeTypeNames), PropertyIndexEditorProvider.TYPE, null);
}
/**
* Create a new property index definition below the given {@code indexNode} of the provided
* {@code propertyIndexType}.
*
* @param indexNode
* @param indexDefName
* @param unique
* @param propertyNames
* @param declaringNodeTypeNames
* @param propertyIndexType
* @param properties any additional property to be added to the index definition.
* @throws RepositoryException
*/
public static Tree createIndexDefinition(@NotNull Tree indexNode,
@NotNull String indexDefName,
boolean unique,
@NotNull Collection propertyNames,
@Nullable Collection declaringNodeTypeNames,
@NotNull String propertyIndexType,
@Nullable Map properties) throws RepositoryException {
Tree entry = TreeUtil.getOrAddChild(indexNode, indexDefName, INDEX_DEFINITIONS_NODE_TYPE);
entry.setProperty(TYPE_PROPERTY_NAME, propertyIndexType);
entry.setProperty(REINDEX_PROPERTY_NAME, true);
if (unique) {
entry.setProperty(UNIQUE_PROPERTY_NAME, true);
}
if (declaringNodeTypeNames != null && declaringNodeTypeNames.size() > 0) {
entry.setProperty(DECLARING_NODE_TYPES, declaringNodeTypeNames, Type.NAMES);
}
entry.setProperty(PROPERTY_NAMES, propertyNames, Type.NAMES);
if (properties != null) {
for (String k : properties.keySet()) {
entry.setProperty(k, properties.get(k));
}
}
return entry;
}
public static void createReferenceIndex(@NotNull NodeBuilder index) {
index.child(NodeReferenceConstants.NAME)
.setProperty(JCR_PRIMARYTYPE, INDEX_DEFINITIONS_NODE_TYPE, NAME)
.setProperty(TYPE_PROPERTY_NAME, NodeReferenceConstants.TYPE)
.setProperty("info", "Oak index for reference lookup.");
}
public static boolean isIndexNodeType(NodeState state) {
PropertyState ps = state.getProperty(JCR_PRIMARYTYPE);
return ps != null
&& ps.getValue(STRING).equals(INDEX_DEFINITIONS_NODE_TYPE);
}
public static boolean isIndexNodeType(NodeState state, String typeIn) {
if (!isIndexNodeType(state)) {
return false;
}
PropertyState type = state.getProperty(TYPE_PROPERTY_NAME);
return type != null && !type.isArray()
&& type.getValue(Type.STRING).equals(typeIn);
}
/**
* Create a new property index definition below the given {@code indexNode} of the provided
* {@code propertyIndexType}.
*
* @param indexNode the oak:index
* @param indexDefName the node for the index definition
* @param unique true if uniqueness
* @param propertyNames the list of properties to be indexed
* @param declaringNodeTypeNames
* @param propertyIndexType the type of the PropertyIndex
* @param properties any additional property to be added to the index definition.
* @throws RepositoryException
*/
public static NodeBuilder createIndexDefinition(@NotNull NodeBuilder indexNode,
@NotNull String indexDefName,
boolean unique,
@NotNull Iterable propertyNames,
@Nullable String[] declaringNodeTypeNames,
@NotNull String propertyIndexType,
Map properties) throws RepositoryException {
NodeBuilder entry = indexNode.child(indexDefName)
.setProperty(JCR_PRIMARYTYPE, INDEX_DEFINITIONS_NODE_TYPE, NAME)
.setProperty(TYPE_PROPERTY_NAME, propertyIndexType)
.setProperty(REINDEX_PROPERTY_NAME, false);
if (unique) {
entry.setProperty(UNIQUE_PROPERTY_NAME, unique);
}
entry.setProperty(PropertyStates.createProperty(PROPERTY_NAMES, propertyNames, NAMES));
if (declaringNodeTypeNames != null && declaringNodeTypeNames.length > 0) {
entry.setProperty(PropertyStates.createProperty(DECLARING_NODE_TYPES,
declaringNodeTypeNames, NAMES));
}
// additional properties
if (properties != null) {
for (String k : properties.keySet()) {
entry.setProperty(k, properties.get(k));
}
}
return entry;
}
@Nullable
public static String getAsyncLaneName(NodeState idxState, String indexPath) {
return getAsyncLaneName(idxState, indexPath, idxState.getProperty(IndexConstants.ASYNC_PROPERTY_NAME));
}
@Nullable
public static String getAsyncLaneName(NodeState idxState, String indexPath, PropertyState async) {
if (async != null) {
Set asyncNames = CollectionUtils.toSet(async.getValue(Type.STRINGS));
asyncNames.remove(IndexConstants.INDEXING_MODE_NRT);
asyncNames.remove(IndexConstants.INDEXING_MODE_SYNC);
checkArgument(!asyncNames.isEmpty(), "No valid async name found for " +
"index [%s], definition %s", indexPath, idxState);
return Iterables.getOnlyElement(asyncNames);
}
return null;
}
/**
* Retrieves the calling class and method from the call stack; this is determined by unwinding
* the stack until it finds a combination of full qualified classname + method (separated by ".") which
* do not start with any of the values provided by the ignoredJavaPackages parameters. If the provided
* parameters cover all stack frames, the whole query is considered to be internal, where the
* actual caller doesn't matter (or cannot be determined clearly). In this case a short message
* indicating this is returned.
*
* If the ignoredJavaPackages parameter is null or empty, the caller is not looked up, but
* instead it is assumed, that the feature is not configured; in that case a short messages
* is returned indicating that the feature is not configured.
*
* @param ignoredJavaPackages the java packages or class names
* @return the calling class or another non-null value
*/
@NotNull
public static String getCaller(@Nullable String[] ignoredJavaPackages) {
if (ignoredJavaPackages == null || ignoredJavaPackages.length == 0) {
return "()";
}
// With java9 we would use https://docs.oracle.com/javase/9/docs/api/java/lang/StackWalker.html
final StackTraceElement[] callStack = Thread.currentThread().getStackTrace();
for (StackTraceElement stackFrame : callStack) {
final String classAndMethod = stackFrame.getClassName() + "." + stackFrame.getMethodName();
if (Stream.of(ignoredJavaPackages).noneMatch(classAndMethod::startsWith)) {
return classAndMethod;
}
}
// if every element is ignored, we assume it's an internal request
return "(internal)";
}
/**
* Returns a Map consisting of checkpoints and checkpointInfoMap filtered based on a given predicate
* which can utilise checkpoint info map for filtering
* @param store
* @param predicate predicate used for filtering of checkpoints
* @return Map> filteredCheckpoint Map
*/
public static Map> getFilteredCheckpoints(NodeStore store, Predicate>> predicate) {
return StreamSupport.stream(store.checkpoints().spliterator(), false)
.collect(Collectors.toMap(str -> str,
store::checkpointInfo))
.entrySet()
.stream()
.filter(predicate)
.collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
}
/**
* Returns a map with checkpoint name as key and checkpoint metadata map as value, sorted on the basis of particular key in the metadata map.
* For example - given the following checkpoints in the system along with their associated metadata maps -
* checkpoint3 - {created-epoch=123458, creator=creator1}
* checkpoint1 - {created-epoch=123456, creator=creator2}
* checkpoint2 - {created-epoch=123457, creator=creator3}
* This method should return -
* {checkpoint1={created-epoch=123456, creator=creator2},
* checkpoint2={created-epoch=123457, creator=creator3},
* checkpoint3={created-epoch=123458, creator=creator1}}
* @param checkpointMap - the map consisting of checkpoints as keys and checkpoint metadata map as values
* @param keyForComparator - key in the metadata map of the checkpoint that can be used as comparator to sort on checkpoint creation time.
* @return Map> sorted checkpoint map
*/
public static Map> getSortedCheckpointMap(Map> checkpointMap,
String keyForComparator) {
return checkpointMap.entrySet().stream()
.filter(entry -> entry.getValue().containsKey(keyForComparator))
.sorted(Comparator.comparingLong(entry -> Long.parseLong(entry.getValue().get(keyForComparator))))
.collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue, (o, n) -> n, LinkedHashMap::new));
}
}
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