spinjar.com.minidev.json.writer.CompessorMapper Maven / Gradle / Ivy
package net.minidev.json.writer;
/*
* Copyright 2011 JSON-SMART authors
*
* 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.
*/
import java.io.IOException;
import net.minidev.json.JSONStyle;
import net.minidev.json.JSONValue;
public class CompessorMapper extends JsonReaderI {
private Appendable out;
private JSONStyle compression;
private Boolean _isObj;
private boolean needSep = false;
private boolean isOpen = false;
private boolean isClosed = false;
// private boolean isRoot = false;
private boolean isArray() {
return _isObj == Boolean.FALSE;
}
private boolean isObject() {
return _isObj == Boolean.TRUE;
}
private boolean isCompressor(Object obj) {
return obj instanceof CompessorMapper;
}
public CompessorMapper(JsonReader base, Appendable out, JSONStyle compression) {
this(base, out, compression, null);
// isRoot = true;
}
public CompessorMapper(JsonReader base, Appendable out, JSONStyle compression, Boolean isObj) {
super(base);
this.out = out;
this.compression = compression;
this._isObj = isObj;
// System.out.println("new CompressorMapper isObj:" + isObj);
}
@Override
public JsonReaderI startObject(String key) throws IOException {
open(this);
startKey(key);
// System.out.println("startObject " + key);
CompessorMapper r = new CompessorMapper(base, out, compression, true);
open(r);
return r;
}
@Override
public JsonReaderI startArray(String key) throws IOException {
open(this);
startKey(key);
// System.out.println("startArray " + key);
CompessorMapper r = new CompessorMapper(base, out, compression, false);
open(r);
return r;
}
private void startKey(String key) throws IOException {
addComma();
// if (key == null)
// return;
if (isArray())
return;
if (!compression.mustProtectKey(key))
out.append(key);
else {
out.append('"');
JSONValue.escape(key, out, compression);
out.append('"');
}
out.append(':');
}
@Override
public void setValue(Object current, String key, Object value) throws IOException {
// System.out.println("setValue(" + key + "," + value + ")");
// if compressor => data already be written
if (isCompressor(value)) {
addComma();
return;
}
startKey(key);
writeValue(value);
}
@Override
public void addValue(Object current, Object value) throws IOException {
// System.out.println("add value" + value);
// if (!isCompressor(value))
addComma();
writeValue(value);
}
private void addComma() throws IOException {
if (needSep) {
out.append(',');
// needSep = false;
} else {
needSep = true;
}
}
private void writeValue(Object value) throws IOException {
if (value instanceof String) {
compression.writeString(out, (String) value);
//
// if (!compression.mustProtectValue((String) value))
// out.append((String) value);
// else {
// out.append('"');
// JSONValue.escape((String) value, out, compression);
// out.append('"');
// }
// needSep = true;
} else {
if (isCompressor(value)) {
close(value);
// needSep = true;
} else {
JSONValue.writeJSONString(value, out, compression);
// needSep = true;
}
}
}
@Override
public Object createObject() {
// System.out.println("createObject");
this._isObj = true;
try {
open(this);
} catch (Exception e) {
}
// if (this.isUnknow() && isRoot) { // && isRoot
// this._isObj = true;
// try {
// out.append('{'); // 1
// } catch (Exception e) {
// }
// }
return this;
}
@Override
public Object createArray() {
// System.out.println("createArray");
this._isObj = false;
try {
open(this);
} catch (Exception e) {
}
return this;
}
public CompessorMapper convert(Object current) {
try {
close(current);
return this;
} catch (Exception e) {
return this;
}
}
private void close(Object obj) throws IOException {
if (!isCompressor(obj))
return;
if (((CompessorMapper) obj).isClosed)
return;
((CompessorMapper) obj).isClosed = true;
if (((CompessorMapper) obj).isObject()) {
// System.out.println("convert }");
out.append('}');
needSep = true;
} else if (((CompessorMapper) obj).isArray()) {
// System.out.println("convert ]");
out.append(']');
needSep = true;
}
}
private void open(Object obj) throws IOException {
if (!isCompressor(obj))
return;
if (((CompessorMapper) obj).isOpen)
return;
((CompessorMapper) obj).isOpen = true;
if (((CompessorMapper) obj).isObject()) {
// System.out.println("open {");
out.append('{');
needSep = false;
} else if (((CompessorMapper) obj).isArray()) {
// System.out.println("open [");
out.append('[');
needSep = false;
}
}
}