/*
* 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.document;
import java.util.List;
import javax.annotation.Nonnull;
import javax.jcr.PropertyType;
import org.apache.jackrabbit.oak.commons.json.JsopReader;
import org.apache.jackrabbit.oak.commons.json.JsopTokenizer;
import org.apache.jackrabbit.oak.api.PropertyState;
import org.apache.jackrabbit.oak.api.Type;
import org.apache.jackrabbit.oak.kernel.StringCache;
import org.apache.jackrabbit.oak.kernel.TypeCodes;
import org.apache.jackrabbit.oak.plugins.memory.AbstractPropertyState;
import org.apache.jackrabbit.oak.plugins.memory.BinaryPropertyState;
import org.apache.jackrabbit.oak.plugins.memory.BooleanPropertyState;
import org.apache.jackrabbit.oak.plugins.memory.DoublePropertyState;
import org.apache.jackrabbit.oak.plugins.memory.LongPropertyState;
import org.apache.jackrabbit.oak.plugins.memory.PropertyStates;
import org.apache.jackrabbit.oak.plugins.memory.StringPropertyState;
import org.apache.jackrabbit.oak.plugins.value.Conversions;
import com.google.common.collect.Lists;
import static java.util.Collections.emptyList;
import static org.apache.jackrabbit.oak.plugins.memory.PropertyStates.createProperty;
/**
* PropertyState implementation with lazy parsing of the JSOP encoded value.
*/
final class DocumentPropertyState implements PropertyState {
private final DocumentNodeStore store;
private final String name;
private final String value;
private PropertyState parsed;
DocumentPropertyState(DocumentNodeStore store, String name, String value) {
this.store = store;
this.name = name;
this.value = value;
}
@Nonnull
@Override
public String getName() {
return name;
}
@Override
public boolean isArray() {
return parsed().isArray();
}
@Override
public Type<?> getType() {
return parsed().getType();
}
@Nonnull
@Override
public <T> T getValue(Type<T> type) {
return parsed().getValue(type);
}
@Nonnull
@Override
public <T> T getValue(Type<T> type, int index) {
return parsed().getValue(type, index);
}
@Override
public long size() {
return parsed().size();
}
@Override
public long size(int index) {
return parsed().size(index);
}
@Override
public int count() {
return parsed().count();
}
//------------------------------------------------------------< Object >--
@Override
public boolean equals(Object object) {
if (this == object) {
return true;
} else if (object instanceof DocumentPropertyState) {
DocumentPropertyState other = (DocumentPropertyState) object;
return this.name.equals(other.name)
&& this.value.equals(other.value);
}
// fall back to default equality check in AbstractPropertyState
return object instanceof PropertyState
&& AbstractPropertyState.equal(parsed(), (PropertyState) object);
}
@Override
public int hashCode() {
return AbstractPropertyState.hashCode(this);
}
@Override
public String toString() {
return AbstractPropertyState.toString(this);
}
//----------------------------< internal >----------------------------------
private PropertyState parsed() {
if (parsed == null) {
JsopReader reader = new JsopTokenizer(value);
if (reader.matches('[')) {
parsed = readArrayProperty(name, reader);
} else {
parsed = readProperty(name, reader);
}
}
return parsed;
}
/**
* FIXME: copied from KernelNodeState.
*
* Read a {@code PropertyState} from a {@link JsopReader}
* @param name The name of the property state
* @param reader The reader
* @return new property state
*/
PropertyState readProperty(String name, JsopReader reader) {
return readProperty(name, store, reader);
}
/**
* FIXME: copied from KernelNodeState.
*
* Read a {@code PropertyState} from a {@link JsopReader}.
*
* @param name the name of the property state
* @param store the store
* @param reader the reader
* @return new property state
*/
static PropertyState readProperty(String name, DocumentNodeStore store, JsopReader reader) {
if (reader.matches(JsopReader.NUMBER)) {
String number = reader.getToken();
try {
return new LongPropertyState(name, Long.parseLong(number));
} catch (NumberFormatException e) {
return new DoublePropertyState(name, Double.parseDouble(number));
}
} else if (reader.matches(JsopReader.TRUE)) {
return BooleanPropertyState.booleanProperty(name, true);
} else if (reader.matches(JsopReader.FALSE)) {
return BooleanPropertyState.booleanProperty(name, false);
} else if (reader.matches(JsopReader.STRING)) {
String jsonString = reader.getToken();
if (jsonString.startsWith(TypeCodes.EMPTY_ARRAY)) {
int type = PropertyType.valueFromName(jsonString.substring(TypeCodes.EMPTY_ARRAY.length()));
return PropertyStates.createProperty(name, emptyList(), Type.fromTag(type, true));
}
int split = TypeCodes.split(jsonString);
if (split != -1) {
int type = TypeCodes.decodeType(split, jsonString);
String value = TypeCodes.decodeName(split, jsonString);
if (type == PropertyType.BINARY) {
return BinaryPropertyState.binaryProperty(name, store.getBlob(value));
} else {
return createProperty(name, StringCache.get(value), type);
}
} else {
return StringPropertyState.stringProperty(name, StringCache.get(jsonString));
}
} else {
throw new IllegalArgumentException("Unexpected token: " + reader.getToken());
}
}
/**
* FIXME: copied from KernelNodeState.
*
* Read a multi valued {@code PropertyState} from a {@link JsopReader}.
*
* @param name the name of the property state
* @param reader the reader
* @return new property state
*/
PropertyState readArrayProperty(String name, JsopReader reader) {
return readArrayProperty(name, store, reader);
}
/**
* FIXME: copied from KernelNodeState.
*
* Read a multi valued {@code PropertyState} from a {@link JsopReader}.
*
* @param name the name of the property state
* @param store the store
* @param reader the reader
* @return new property state
*/
static PropertyState readArrayProperty(String name, DocumentNodeStore store, JsopReader reader) {
int type = PropertyType.STRING;
List<Object> values = Lists.newArrayList();
while (!reader.matches(']')) {
if (reader.matches(JsopReader.NUMBER)) {
String number = reader.getToken();
try {
type = PropertyType.LONG;
values.add(Long.parseLong(number));
} catch (NumberFormatException e) {
type = PropertyType.DOUBLE;
values.add(Double.parseDouble(number));
}
} else if (reader.matches(JsopReader.TRUE)) {
type = PropertyType.BOOLEAN;
values.add(true);
} else if (reader.matches(JsopReader.FALSE)) {
type = PropertyType.BOOLEAN;
values.add(false);
} else if (reader.matches(JsopReader.STRING)) {
String jsonString = reader.getToken();
int split = TypeCodes.split(jsonString);
if (split != -1) {
type = TypeCodes.decodeType(split, jsonString);
String value = TypeCodes.decodeName(split, jsonString);
if (type == PropertyType.BINARY) {
values.add(store.getBlob(value));
} else if (type == PropertyType.DOUBLE) {
values.add(Conversions.convert(value).toDouble());
} else if (type == PropertyType.DECIMAL) {
values.add(Conversions.convert(value).toDecimal());
} else {
values.add(StringCache.get(value));
}
} else {
type = PropertyType.STRING;
values.add(StringCache.get(jsonString));
}
} else {
throw new IllegalArgumentException("Unexpected token: " + reader.getToken());
}
reader.matches(',');
}
return createProperty(name, values, Type.fromTag(type, true));
}
}