JcrQueryTaskFinder.java
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/*
* Decompiled with CFR 0_118.
*
* Could not load the following classes:
* com.adobe.granite.taskmanagement.ComparisonOperator
* com.adobe.granite.taskmanagement.Condition
* com.adobe.granite.taskmanagement.Filter
* com.adobe.granite.taskmanagement.Task
* com.adobe.granite.taskmanagement.TaskManagerException
* com.adobe.granite.taskmanagement.TaskProperty
* javax.jcr.Binary
* javax.jcr.Node
* javax.jcr.NodeIterator
* javax.jcr.RepositoryException
* javax.jcr.Session
* javax.jcr.Value
* javax.jcr.ValueFactory
* javax.jcr.Workspace
* javax.jcr.query.QueryManager
* javax.jcr.query.QueryResult
* javax.jcr.query.qom.And
* javax.jcr.query.qom.Column
* javax.jcr.query.qom.Comparison
* javax.jcr.query.qom.Constraint
* javax.jcr.query.qom.DescendantNode
* javax.jcr.query.qom.DynamicOperand
* javax.jcr.query.qom.Literal
* javax.jcr.query.qom.Not
* javax.jcr.query.qom.Or
* javax.jcr.query.qom.Ordering
* javax.jcr.query.qom.PropertyExistence
* javax.jcr.query.qom.PropertyValue
* javax.jcr.query.qom.QueryObjectModel
* javax.jcr.query.qom.QueryObjectModelFactory
* javax.jcr.query.qom.Selector
* javax.jcr.query.qom.Source
* javax.jcr.query.qom.StaticOperand
*/
package com.adobe.granite.taskmanagement.impl.jcr;
import com.adobe.granite.taskmanagement.ComparisonOperator;
import com.adobe.granite.taskmanagement.Condition;
import com.adobe.granite.taskmanagement.Filter;
import com.adobe.granite.taskmanagement.Task;
import com.adobe.granite.taskmanagement.TaskManagerException;
import com.adobe.granite.taskmanagement.TaskProperty;
import com.adobe.granite.taskmanagement.impl.jcr.TaskFinder;
import com.adobe.granite.taskmanagement.impl.jcr.TaskStorageProvider;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import javax.jcr.Binary;
import javax.jcr.Node;
import javax.jcr.NodeIterator;
import javax.jcr.RepositoryException;
import javax.jcr.Session;
import javax.jcr.Value;
import javax.jcr.ValueFactory;
import javax.jcr.Workspace;
import javax.jcr.query.QueryManager;
import javax.jcr.query.QueryResult;
import javax.jcr.query.qom.And;
import javax.jcr.query.qom.Column;
import javax.jcr.query.qom.Comparison;
import javax.jcr.query.qom.Constraint;
import javax.jcr.query.qom.DescendantNode;
import javax.jcr.query.qom.DynamicOperand;
import javax.jcr.query.qom.Literal;
import javax.jcr.query.qom.Not;
import javax.jcr.query.qom.Or;
import javax.jcr.query.qom.Ordering;
import javax.jcr.query.qom.PropertyExistence;
import javax.jcr.query.qom.PropertyValue;
import javax.jcr.query.qom.QueryObjectModel;
import javax.jcr.query.qom.QueryObjectModelFactory;
import javax.jcr.query.qom.Selector;
import javax.jcr.query.qom.Source;
import javax.jcr.query.qom.StaticOperand;
/*
* This class specifies class file version 49.0 but uses Java 6 signatures. Assumed Java 6.
*/
public class JcrQueryTaskFinder
implements TaskFinder {
private TaskStorageProvider taskStorageProvider;
private Session session;
private String rootPath;
private static final String TASK_SELECTOR = "tasks";
public JcrQueryTaskFinder(TaskStorageProvider taskStorageProvider, Session session, String rootPath) {
this.taskStorageProvider = taskStorageProvider;
this.session = session;
this.rootPath = rootPath;
}
@Override
public List<Task> findTasks(Set<String> setOfUserIDs, Filter filter, int startIndex, int maxNumberOfTasks) throws TaskManagerException {
try {
Constraint propertyConstraint;
Constraint taskTypeConstraint;
Constraint combinedUserConstraint;
QueryManager qm = this.session.getWorkspace().getQueryManager();
ValueFactory valueFactory = this.session.getValueFactory();
QueryObjectModelFactory qf = qm.getQOMFactory();
Selector source = qf.selector("granite:Task", "tasks");
DescendantNode pathConstraint = null;
boolean hasParentTaskId = false;
if (filter != null && filter.getParentTaskId() != null && filter.getParentTaskId().trim().length() > 0) {
hasParentTaskId = true;
pathConstraint = qf.descendantNode("tasks", this.getPath(filter.getParentTaskId()));
} else {
pathConstraint = qf.descendantNode("tasks", this.rootPath);
}
DescendantNode taskFilterConstraint = pathConstraint;
if (filter != null && !filter.isReturnFlatStructure()) {
taskFilterConstraint = hasParentTaskId ? qf.and((Constraint)pathConstraint, (Constraint)qf.comparison((DynamicOperand)qf.propertyValue("tasks", TaskProperty.PARENT_TASK_ID.getPropertyName()), "jcr.operator.equal.to", (StaticOperand)qf.literal(valueFactory.createValue(filter.getParentTaskId())))) : qf.and((Constraint)pathConstraint, (Constraint)qf.not((Constraint)qf.propertyExistence("tasks", TaskProperty.PARENT_TASK_ID.getPropertyName())));
}
if ((combinedUserConstraint = this.constructUserConstraint(setOfUserIDs = this.taskStorageProvider.cleanupUserIDs(filter, setOfUserIDs), valueFactory, qf)) != null) {
taskFilterConstraint = qf.and((Constraint)taskFilterConstraint, combinedUserConstraint);
}
if ((propertyConstraint = this.constructPropertyConstraint(filter, valueFactory, qf)) != null) {
taskFilterConstraint = qf.and((Constraint)taskFilterConstraint, propertyConstraint);
}
if ((taskTypeConstraint = this.constructTaskTypeConstraint(filter, valueFactory, qf)) != null) {
taskFilterConstraint = qf.and((Constraint)taskFilterConstraint, taskTypeConstraint);
}
QueryObjectModel query = qf.createQuery((Source)source, (Constraint)taskFilterConstraint, null, null);
QueryResult queryResult = query.execute();
ArrayList<Task> listOfTasks = new ArrayList<Task>();
int taskIndex = 0;
NodeIterator nodeIterator = queryResult.getNodes();
while (nodeIterator.hasNext()) {
Node node = nodeIterator.nextNode();
if (++taskIndex <= startIndex) continue;
Task task = this.taskStorageProvider.read(node, filter != null && filter.isReturnTaskStructure());
listOfTasks.add(task);
if (maxNumberOfTasks <= 0 || listOfTasks.size() < maxNumberOfTasks) continue;
break;
}
return listOfTasks;
}
catch (RepositoryException re) {
throw new TaskManagerException("Failed to query for tasks", (Throwable)re);
}
}
private Constraint constructTaskTypeConstraint(Filter filter, ValueFactory valueFactory, QueryObjectModelFactory qf) throws RepositoryException {
Comparison result = null;
if (filter != null && filter.getTaskTypes() != null && filter.getTaskTypes().length > 0) {
for (String taskType : filter.getTaskTypes()) {
if (taskType == null) continue;
Comparison comparison = this.createComparison(valueFactory, qf, TaskProperty.TASK_TYPE_NAME.getPropertyName(), "jcr.operator.equal.to", taskType);
result = result == null ? comparison : qf.or((Constraint)result, (Constraint)comparison);
}
}
return result;
}
private Constraint constructPropertyConstraint(Filter filter, ValueFactory valueFactory, QueryObjectModelFactory qf) throws RepositoryException, TaskManagerException {
Constraint propertyConstraint = null;
if (filter != null) {
Iterator conditions = filter.getConditions();
while (conditions.hasNext()) {
Condition condition = (Condition)conditions.next();
Constraint constraint = this.createConstraint(valueFactory, qf, condition);
if (constraint == null) continue;
if (propertyConstraint == null) {
propertyConstraint = constraint;
continue;
}
propertyConstraint = qf.and(propertyConstraint, constraint);
}
}
return propertyConstraint;
}
private Constraint createConstraint(ValueFactory valueFactory, QueryObjectModelFactory qf, Condition condition) throws RepositoryException, TaskManagerException {
if (condition == null) {
return null;
}
if (condition.getComparisonOperator() == null || condition.getPropertyName() == null) {
throw new TaskManagerException("Property on filter condition is null");
}
switch (condition.getComparisonOperator()) {
case IN_LIST: {
return this.constructInListConstraint(valueFactory, qf, condition);
}
case BEGINS_WITH:
case ENDS_WITH:
case CONTAINS: {
return this.constructLikeConstraint(valueFactory, qf, condition);
}
}
return qf.comparison((DynamicOperand)qf.propertyValue("tasks", condition.getPropertyName()), this.getComparator(condition), (StaticOperand)qf.literal(this.getConditionValue(valueFactory, condition)));
}
private Constraint constructLikeConstraint(ValueFactory valueFactory, QueryObjectModelFactory qf, Condition condition) throws RepositoryException, TaskManagerException {
if (condition == null) {
return null;
}
if (condition.getComparisonOperator() == null || condition.getPropertyName() == null || condition.getComparisonValue() == null) {
throw new TaskManagerException("Property on filter condition is null");
}
if (!(condition.getComparisonValue() instanceof String)) {
throw new TaskManagerException("Unexpected property value comparison type in 'Like' expression, expected String got " + condition.getComparisonValue());
}
String literal = (String)condition.getComparisonValue();
if (literal == null) {
literal = "";
}
switch (condition.getComparisonOperator()) {
case BEGINS_WITH: {
literal = literal + "%";
break;
}
case ENDS_WITH: {
literal = "%" + literal;
break;
}
case CONTAINS: {
literal = "%" + literal + "%";
break;
}
default: {
throw new TaskManagerException("Unepxected comparison operator in 'Like' constraint");
}
}
return qf.comparison((DynamicOperand)qf.propertyValue("tasks", condition.getPropertyName()), this.getComparator(condition), (StaticOperand)qf.literal(valueFactory.createValue(literal)));
}
private Constraint constructInListConstraint(ValueFactory valueFactory, QueryObjectModelFactory qf, Condition condition) throws TaskManagerException, RepositoryException {
if (condition.getComparisonOperator() != ComparisonOperator.IN_LIST) {
throw new TaskManagerException("Expected IN_LIST operator, got " + (Object)condition.getComparisonOperator());
}
if (!(condition.getComparisonValue() instanceof List)) {
throw new TaskManagerException("Expected List paramter for IN_LIST comparison, got " + condition.getComparisonValue().getClass().getCanonicalName());
}
List listOfValues = (List)condition.getComparisonValue();
if (listOfValues != null) {
Comparison result = null;
for (String value : listOfValues) {
String propertyName = condition.getPropertyName();
Comparison comparison = this.createComparison(valueFactory, qf, propertyName, "jcr.operator.equal.to", value);
if (result == null) {
result = comparison;
continue;
}
result = qf.or((Constraint)result, (Constraint)comparison);
}
return result;
}
return null;
}
private Comparison createComparison(ValueFactory valueFactory, QueryObjectModelFactory qf, String propertyName, String comparisonOperator, String propertyValue) throws RepositoryException {
return qf.comparison((DynamicOperand)qf.propertyValue("tasks", propertyName), comparisonOperator, (StaticOperand)qf.literal(valueFactory.createValue(propertyValue)));
}
private String getComparator(Condition condition) throws TaskManagerException {
switch (condition.getComparisonOperator()) {
case EQUALS: {
return "jcr.operator.equal.to";
}
case GREATER_THAN: {
return "jcr.operator.greater.than";
}
case LESS_THAN: {
return "jcr.operator.less.than";
}
case NOT_EQUALS: {
return "jcr.operator.not.equal.to";
}
case GREATER_THAN_EQUALS: {
return "jcr.operator.greater.than.or.equal.to";
}
case LESS_THAN_EQUALS: {
return "jcr.operator.less.than.or.equal.to";
}
case BEGINS_WITH: {
return "jcr.operator.like";
}
case ENDS_WITH: {
return "jcr.operator.like";
}
case CONTAINS: {
return "jcr.operator.like";
}
}
throw new TaskManagerException("Unknown comparison operator in task filter");
}
private Value getConditionValue(ValueFactory valueFactory, Condition condition) throws TaskManagerException {
Object conditionValue = condition.getComparisonValue();
if (conditionValue instanceof String) {
return valueFactory.createValue((String)conditionValue);
}
if (conditionValue != null && conditionValue.getClass().isEnum()) {
return valueFactory.createValue(((Enum)conditionValue).name());
}
if (conditionValue instanceof BigDecimal) {
return valueFactory.createValue((BigDecimal)conditionValue);
}
if (conditionValue instanceof Binary) {
return valueFactory.createValue((Binary)conditionValue);
}
if (conditionValue instanceof Boolean) {
return valueFactory.createValue(((Boolean)conditionValue).booleanValue());
}
if (conditionValue instanceof Date) {
Calendar cal = Calendar.getInstance();
cal.setTime((Date)conditionValue);
return valueFactory.createValue(cal);
}
if (conditionValue instanceof Calendar) {
return valueFactory.createValue((Calendar)conditionValue);
}
if (conditionValue instanceof Double) {
return valueFactory.createValue(((Double)conditionValue).doubleValue());
}
if (conditionValue instanceof Long) {
return valueFactory.createValue(((Long)conditionValue).longValue());
}
return valueFactory.createValue(conditionValue.toString());
}
private Constraint constructUserConstraint(Set<String> setOfUserIDs, ValueFactory valueFactory, QueryObjectModelFactory qf) throws RepositoryException {
Comparison resultingConstraint = null;
if (setOfUserIDs != null && setOfUserIDs.size() > 0) {
for (String userId : setOfUserIDs) {
Comparison userConstraint = qf.comparison((DynamicOperand)qf.propertyValue("tasks", TaskProperty.OWNER_ID.getPropertyName()), "jcr.operator.equal.to", (StaticOperand)qf.literal(valueFactory.createValue(userId)));
if (resultingConstraint == null) {
resultingConstraint = userConstraint;
continue;
}
resultingConstraint = qf.or((Constraint)resultingConstraint, (Constraint)userConstraint);
}
}
return resultingConstraint;
}
private String getPath(String id) {
return this.rootPath + '/' + id;
}
}