HNSegment.java

package com.mozz.htmlnative;

import android.support.annotation.NonNull;
import android.util.ArrayMap;

import com.mozz.htmlnative.css.AttrsSet;
import com.mozz.htmlnative.css.StyleSheet;
import com.mozz.htmlnative.dom.HNDomTree;
import com.mozz.htmlnative.dom.HNHead;
import com.mozz.htmlnative.exception.HNSyntaxError;
import com.mozz.htmlnative.parser.Parser;
import com.mozz.htmlnative.reader.FileTextReader;
import com.mozz.htmlnative.script.ScriptInfo;

import java.io.InputStream;
import java.util.Map;

public final class HNSegment {

    private HNDomTree mDom;
    private boolean mHasScriptEmbed;
    private ScriptInfo mScriptInfo;
    private HNHead mHead;

    private AttrsSet mInlineStyles;
    private StyleSheet mStyleSheet;

    @NonNull
    private static Map<String, HNSegment> sCache = new ArrayMap<>();
    private static final Object sCacheLock = new Object();

    public HNSegment() {
        mInlineStyles = new AttrsSet("Inline-Style");
        mHead = new HNHead();
        mHasScriptEmbed = false;
        mStyleSheet = new StyleSheet();
    }

    @NonNull
    public static HNSegment load(@NonNull InputStream stream) throws HNSyntaxError {
        Parser parser = new Parser(new FileTextReader(stream));
        return parser.process();
    }

    //TODO finish the cache of HNSegment
    public static HNSegment load(@NonNull InputStream stream, String type) throws HNSyntaxError {
        synchronized (sCacheLock) {
            HNSegment module = sCache.get(type);
            if (module != null) {
                return module;
            } else {
                module = load(stream);
                sCache.put(type, module);
                return module;
            }
        }
    }

    public static void clearCache() {
        synchronized (sCacheLock) {
            sCache.clear();
        }
    }


    @Override
    public String toString() {
        //TODO
        return mHead.toString();
    }
    
    public StyleSheet getStyleSheet() {
        return mStyleSheet;
    }

    public HNDomTree getDom() {
        return mDom;
    }

    public void setDom(HNDomTree mDom) {
        this.mDom = mDom;
    }

    public HNHead getHead() {
        return mHead;
    }

    public void setHead(HNHead head) {
        mHead = head;
    }

    public AttrsSet getInlineStyles() {
        return mInlineStyles;
    }

    public ScriptInfo getScriptInfo() {
        return mScriptInfo;
    }

    public void setScriptInfo(ScriptInfo scriptInfo) {
        if (scriptInfo != null) {
            mScriptInfo = scriptInfo;
            mHasScriptEmbed = true;
        }
    }

    public boolean hasSetScript() {
        return mHasScriptEmbed;
    }
}