com.connectsdk.service.airplay.PListParser.java Source code

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Here is the source code for com.connectsdk.service.airplay.PListParser.java

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/*
 * PListParser
 * Connect SDK
 * 
 * Copyright (c) 2014 LG Electronics.
 * Created by Hyun Kook Khang on 18 Apr 2014
 * 
 * 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.connectsdk.service.airplay;

import android.util.Log;
import android.util.Xml;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;

import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.io.StringReader;

public class PListParser {
    private static final String ns = null;

    public JSONObject parse(String text) throws XmlPullParserException, IOException, JSONException {
        XmlPullParser parser = Xml.newPullParser();
        parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false);
        Reader stream = new StringReader(text);
        parser.setInput(stream);
        parser.nextTag();
        return readPlist(parser);
    }

    public JSONObject parse(InputStream in) throws XmlPullParserException, IOException, JSONException {
        try {
            XmlPullParser parser = Xml.newPullParser();
            parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false);
            parser.setInput(in, null);
            parser.nextTag();
            return readPlist(parser);
        } finally {
            in.close();
        }
    }

    private JSONObject readPlist(XmlPullParser parser) throws XmlPullParserException, IOException, JSONException {
        JSONObject plist = null;

        parser.require(XmlPullParser.START_TAG, ns, "plist");
        while (parser.next() != XmlPullParser.END_TAG) {
            if (parser.getEventType() != XmlPullParser.START_TAG) {
                continue;
            }

            String name = parser.getName();

            if (name.equals("dict")) {
                plist = readDict(parser);
            }
        }

        return plist;
    }

    public JSONObject readDict(XmlPullParser parser) throws IOException, XmlPullParserException, JSONException {
        JSONObject plist = new JSONObject();

        parser.require(XmlPullParser.START_TAG, ns, "dict");

        String key = null;

        while (parser.next() != XmlPullParser.END_TAG) {
            if (parser.getEventType() != XmlPullParser.START_TAG) {
                continue;
            }
            String name = parser.getName();

            if (name.equals("key")) {
                key = readKey(parser);
                Log.d("", "plist " + key);
            } else if (key != null) {
                if (name.equals("data")) {
                    plist.put(key, readData(parser));
                } else if (name.equals("integer")) {
                    plist.put(key, readInteger(parser));
                } else if (name.equals("string")) {
                    plist.put(key, readString(parser));
                } else if (name.equals("real")) {
                    plist.put(key, readReal(parser));
                } else if (name.equals("array")) {
                    plist.put(key, readArray(parser));
                } else if (name.equals("dict")) {
                    plist.put(key, readDict(parser));
                } else if (name.equals("true") || name.equals("false")) {
                    plist.put(key, Boolean.valueOf(name));
                    skip(parser);
                }

                key = null;
            }
        }

        return plist;
    }

    private JSONArray readArray(XmlPullParser parser) throws IOException, XmlPullParserException, JSONException {
        JSONArray plist = new JSONArray();
        parser.require(XmlPullParser.START_TAG, ns, "array");

        while (parser.next() != XmlPullParser.END_TAG) {
            if (parser.getEventType() != XmlPullParser.START_TAG) {
                continue;
            }
            String name = parser.getName();
            if (name.equals("dict")) {
                plist.put(readDict(parser));
            }
        }
        return plist;
    }

    private String readKey(XmlPullParser parser) throws IOException, XmlPullParserException {
        parser.require(XmlPullParser.START_TAG, ns, "key");
        String key = readText(parser);
        parser.require(XmlPullParser.END_TAG, ns, "key");
        return key;
    }

    private String readData(XmlPullParser parser) throws IOException, XmlPullParserException {
        parser.require(XmlPullParser.START_TAG, ns, "data");
        String value = readText(parser);
        parser.require(XmlPullParser.END_TAG, ns, "data");
        return value;
    }

    private int readInteger(XmlPullParser parser) throws IOException, XmlPullParserException {
        parser.require(XmlPullParser.START_TAG, ns, "integer");
        int value = Integer.valueOf(readText(parser));
        parser.require(XmlPullParser.END_TAG, ns, "integer");
        return value;
    }

    private double readReal(XmlPullParser parser) throws IOException, XmlPullParserException {
        parser.require(XmlPullParser.START_TAG, ns, "real");
        double value = Double.valueOf(readText(parser));
        parser.require(XmlPullParser.END_TAG, ns, "real");
        return value;
    }

    private String readString(XmlPullParser parser) throws IOException, XmlPullParserException {
        parser.require(XmlPullParser.START_TAG, ns, "string");
        String value = readText(parser);
        parser.require(XmlPullParser.END_TAG, ns, "string");
        return value;
    }

    private String readText(XmlPullParser parser) throws IOException, XmlPullParserException {
        String result = "";
        if (parser.next() == XmlPullParser.TEXT) {
            result = parser.getText();
            parser.nextTag();
        }
        return result;
    }

    private void skip(XmlPullParser parser) throws XmlPullParserException, IOException {
        if (parser.getEventType() != XmlPullParser.START_TAG) {
            throw new IllegalStateException();
        }
        int depth = 1;
        while (depth != 0) {
            switch (parser.next()) {
            case XmlPullParser.END_TAG:
                depth--;
                break;
            case XmlPullParser.START_TAG:
                depth++;
                break;
            }
        }
    }
}