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A general programming library in Java/Android. It's easy to learn and simple to use with concise and powerful APIs.
/*
* Copyright (C) 2015 HaiYang Li
*
* 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 com.landawn.abacus.type;
import java.io.IOException;
import java.io.Writer;
import java.util.Collection;
import java.util.List;
import java.util.Queue;
import java.util.Set;
import com.landawn.abacus.exception.UncheckedIOException;
import com.landawn.abacus.parser.JSONDeserializationConfig;
import com.landawn.abacus.parser.JSONDeserializationConfig.JDC;
import com.landawn.abacus.parser.SerializationConfig;
import com.landawn.abacus.util.BufferedJSONWriter;
import com.landawn.abacus.util.BufferedWriter;
import com.landawn.abacus.util.CharacterWriter;
import com.landawn.abacus.util.ClassUtil;
import com.landawn.abacus.util.N;
import com.landawn.abacus.util.Objectory;
import com.landawn.abacus.util.WD;
/**
*
* @author Haiyang Li
* @param
* @param
* @since 0.8
*/
@SuppressWarnings("java:S2160")
public class CollectionType> extends AbstractType {
private final String declaringName;
private final Class typeClass;
private final Type[] parameterTypes;
private final Type elementType;
private final boolean isList;
private final boolean isSet;
private final JSONDeserializationConfig jdc;
CollectionType(Class typeClass, String parameterTypeName) {
super(getTypeName(typeClass, parameterTypeName, false));
String tmp = null;
if (typeClass.isInterface()) {
tmp = getTypeName(typeClass, parameterTypeName, true);
} else {
if (List.class.isAssignableFrom(typeClass)) {
tmp = getTypeName(List.class, parameterTypeName, true);
} else if (Set.class.isAssignableFrom(typeClass)) {
tmp = getTypeName(Set.class, parameterTypeName, true);
} else if (Queue.class.isAssignableFrom(typeClass)) {
tmp = getTypeName(Queue.class, parameterTypeName, true);
} else {
tmp = getTypeName(Collection.class, parameterTypeName, true);
Class[] interfaceClasses = typeClass.getInterfaces();
for (Class interfaceClass : interfaceClasses) {
if (Collection.class.isAssignableFrom(interfaceClass) && !interfaceClass.equals(Collection.class)) {
tmp = getTypeName(interfaceClass, parameterTypeName, true);
break;
}
}
}
}
this.declaringName = tmp;
this.typeClass = typeClass;
this.parameterTypes = new Type[] { TypeFactory.getType(parameterTypeName) };
this.elementType = parameterTypes[0];
this.jdc = JDC.create().setElementType(elementType);
this.isList = List.class.isAssignableFrom(this.typeClass);
this.isSet = Set.class.isAssignableFrom(this.typeClass);
}
/**
*
*
* @return
*/
@Override
public String declaringName() {
return declaringName;
}
/**
*
*
* @return
*/
@Override
public Class clazz() {
return typeClass;
}
/**
* Gets the element type.
*
* @return
*/
@Override
public Type getElementType() {
return elementType;
}
/**
* Gets the parameter types.
*
* @return
*/
@Override
public Type[] getParameterTypes() {
return parameterTypes;
}
/**
* Checks if is list.
*
* @return true, if is list
*/
@Override
public boolean isList() {
return isList;
}
/**
* Checks if is sets the.
*
* @return true, if is sets the
*/
@Override
public boolean isSet() {
return isSet;
}
/**
* Checks if is collection.
*
* @return true, if is collection
*/
@Override
public boolean isCollection() {
return true;
}
/**
* Checks if is generic type.
*
* @return true, if is generic type
*/
@Override
public boolean isGenericType() {
return true;
}
/**
* Checks if is serializable.
*
* @return true, if is serializable
*/
@Override
public boolean isSerializable() {
return elementType.isSerializable();
}
/**
* Gets the serialization type.
*
* @return
*/
@Override
public SerializationType getSerializationType() {
return isSerializable() ? SerializationType.SERIALIZABLE : SerializationType.COLLECTION;
}
/**
*
* @param x
* @return
*/
@Override
public String stringOf(T x) {
if (x == null) {
return null;
} else if (x.size() == 0) {
return "[]";
}
if (this.isSerializable()) {
final BufferedJSONWriter bw = Objectory.createBufferedJSONWriter();
try {
bw.write(WD._BRACKET_L);
int i = 0;
for (E e : x) {
if (i++ > 0) {
bw.write(ELEMENT_SEPARATOR_CHAR_ARRAY);
}
if (e == null) {
bw.write(NULL_CHAR_ARRAY);
} else {
elementType.writeCharacter(bw, e, Utils.jsc);
}
}
bw.write(WD._BRACKET_R);
return bw.toString();
} catch (IOException e) {
throw new UncheckedIOException(e);
} finally {
Objectory.recycle(bw);
}
} else {
return Utils.jsonParser.serialize(x, Utils.jsc);
}
}
/**
*
* @param str
* @return
*/
@Override
public T valueOf(String str) {
if (str == null) {
return null;
} else if (str.length() == 0 || "[]".equals(str)) {
return (T) N.newCollection(typeClass);
} else {
return Utils.jsonParser.deserialize(typeClass, str, jdc);
}
}
/**
*
* @param writer
* @param x
* @throws IOException Signals that an I/O exception has occurred.
*/
@Override
public void write(Writer writer, T x) throws IOException {
if (x == null) {
writer.write(NULL_CHAR_ARRAY);
} else {
boolean isBufferedWriter = writer instanceof BufferedWriter || writer instanceof java.io.BufferedWriter;
final Writer bw = isBufferedWriter ? writer : Objectory.createBufferedWriter(writer); //NOSONAR
try {
bw.write(WD._BRACKET_L);
int i = 0;
for (E e : x) {
if (i++ > 0) {
bw.write(ELEMENT_SEPARATOR_CHAR_ARRAY);
}
if (e == null) {
bw.write(NULL_CHAR_ARRAY);
} else {
elementType.write(bw, e);
}
}
bw.write(WD._BRACKET_R);
if (!isBufferedWriter) {
bw.flush();
}
} catch (IOException e) {
throw new UncheckedIOException(e);
} finally {
if (!isBufferedWriter) {
Objectory.recycle((BufferedWriter) bw);
}
}
}
}
/**
*
* @param writer
* @param x
* @param config
* @throws IOException Signals that an I/O exception has occurred.
*/
@Override
public void writeCharacter(CharacterWriter writer, T x, SerializationConfig config) throws IOException {
if (x == null) {
writer.write(NULL_CHAR_ARRAY);
} else {
try {
writer.write(WD._BRACKET_L);
int i = 0;
for (E e : x) {
if (i++ > 0) {
writer.write(ELEMENT_SEPARATOR_CHAR_ARRAY);
}
if (e == null) {
writer.write(NULL_CHAR_ARRAY);
} else {
elementType.writeCharacter(writer, e, config);
}
}
writer.write(WD._BRACKET_R);
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
}
/**
* Gets the type name.
*
* @param typeClass
* @param parameterTypeName
* @param isDeclaringName
* @return
*/
protected static String getTypeName(Class typeClass, String parameterTypeName, boolean isDeclaringName) {
if (isDeclaringName) {
return ClassUtil.getSimpleClassName(typeClass) + WD.LESS_THAN + TypeFactory.getType(parameterTypeName).declaringName() + WD.GREATER_THAN;
} else {
return ClassUtil.getCanonicalClassName(typeClass) + WD.LESS_THAN + TypeFactory.getType(parameterTypeName).name() + WD.GREATER_THAN;
}
}
}