/* 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.
*/
package org.camunda.bpm.engine.impl.persistence.entity;
import static org.camunda.bpm.engine.impl.util.EnsureUtil.ensureNotEmpty;
import static org.camunda.bpm.engine.impl.util.EnsureUtil.ensureNotNull;
import static org.camunda.bpm.engine.impl.util.EnsureUtil.ensureNull;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import org.camunda.bpm.engine.EntityTypes;
import org.camunda.bpm.engine.ProcessEngineException;
import org.camunda.bpm.engine.exception.NotValidException;
import org.camunda.bpm.engine.filter.Filter;
import org.camunda.bpm.engine.impl.AbstractQuery;
import org.camunda.bpm.engine.impl.db.DbEntity;
import org.camunda.bpm.engine.impl.db.HasDbRevision;
import org.camunda.bpm.engine.impl.json.JsonObjectConverter;
import org.camunda.bpm.engine.impl.json.JsonTaskQueryConverter;
import org.camunda.bpm.engine.impl.util.JsonUtil;
import org.camunda.bpm.engine.impl.util.json.JSONObject;
import org.camunda.bpm.engine.query.Query;
/**
* @author Sebastian Menski
*/
public class FilterEntity implements Filter, Serializable, DbEntity, HasDbRevision {
private static final long serialVersionUID = 1L;
public final static Map<String, JsonObjectConverter<?>> queryConverter = new HashMap<String, JsonObjectConverter<?>>();
static {
queryConverter.put(EntityTypes.TASK, new JsonTaskQueryConverter());
}
protected String id;
protected String resourceType;
protected String name;
protected String owner;
protected AbstractQuery query;
protected Map<String, Object> properties;
protected int revision = 0;
protected FilterEntity() {
}
public FilterEntity(String resourceType) {
setResourceType(resourceType);
setQueryInternal("{}");
}
public void setId(String id) {
this.id = id;
}
public String getId() {
return id;
}
public Filter setResourceType(String resourceType) {
ensureNotEmpty(NotValidException.class, "Filter resource type must not be null or empty", "resourceType", resourceType);
ensureNull(NotValidException.class, "Cannot overwrite filter resource type", "resourceType", this.resourceType);
this.resourceType = resourceType;
return this;
}
public String getResourceType() {
return resourceType;
}
public String getName() {
return name;
}
public Filter setName(String name) {
ensureNotEmpty(NotValidException.class, "Filter name must not be null or empty", "name", name);
this.name = name;
return this;
}
public String getOwner() {
return owner;
}
public Filter setOwner(String owner) {
this.owner = owner;
return this;
}
@SuppressWarnings("unchecked")
public <T extends Query<?, ?>> T getQuery() {
return (T) query;
}
public String getQueryInternal() {
JsonObjectConverter<Object> converter = getConverter();
return converter.toJson(query);
}
public <T extends Query<?, ?>> Filter setQuery(T query) {
ensureNotNull(NotValidException.class, "query", query);
this.query = (AbstractQuery<?, ?>) query;
return this;
}
public void setQueryInternal(String query) {
ensureNotNull(NotValidException.class, "query", query);
JsonObjectConverter<Object> converter = getConverter();
this.query = (AbstractQuery<?, ?>) converter.toObject(new JSONObject(query));
}
public Map<String, Object> getProperties() {
if (properties != null) {
return JsonUtil.jsonObjectAsMap(new JSONObject(properties));
}
else {
return null;
}
}
public String getPropertiesInternal() {
return new JSONObject(properties).toString();
}
public Filter setProperties(Map<String, Object> properties) {
this.properties = properties;
return this;
}
public void setPropertiesInternal(String properties) {
if (properties != null) {
JSONObject jsonObject = new JSONObject(properties);
this.properties = JsonUtil.jsonObjectAsMap(jsonObject);
}
else {
this.properties = null;
}
}
public int getRevision() {
return revision;
}
public void setRevision(int revision) {
this.revision = revision;
}
public int getRevisionNext() {
return revision + 1;
}
@SuppressWarnings("unchecked")
public <T extends Query<?, ?>> Filter extend(T extendingQuery) {
ensureNotNull(NotValidException.class, "extendingQuery", extendingQuery);
if (!extendingQuery.getClass().equals(query.getClass())) {
throw new NotValidException("Unable to extend a query of class '" + query.getClass() + "' by a query of class '" + extendingQuery.getClass() + "'");
}
FilterEntity copy = copyFilter();
copy.setQuery(query.extend(extendingQuery));
return copy;
}
@SuppressWarnings("unchecked")
protected <T> JsonObjectConverter<T> getConverter() {
JsonObjectConverter<T> converter = (JsonObjectConverter<T>) queryConverter.get(resourceType);
if (converter != null) {
return converter;
}
else {
throw new ProcessEngineException("Unsupported resource type '" + resourceType + "'");
}
}
public Object getPersistentState() {
Map<String, Object> persistentState = new HashMap<String, Object>();
persistentState.put("name", this.name);
persistentState.put("owner", this.owner);
persistentState.put("query", this.query);
persistentState.put("properties", this.properties);
return persistentState;
}
protected FilterEntity copyFilter() {
FilterEntity copy = new FilterEntity(getResourceType());
copy.setName(getName());
copy.setOwner(getOwner());
copy.setQueryInternal(getQueryInternal());
copy.setPropertiesInternal(getPropertiesInternal());
return copy;
}
}