com.vanda.beivandalibnetwork.utils.CommonUtils.java Source code

Introduction

Here is the source code for com.vanda.beivandalibnetwork.utils.CommonUtils.java

Source

/***********************************************************************************************************************
 * 
 * Copyright (C) 2013, 2014 by sunnsoft (http://www.sunnsoft.com)
 * http://www.sunnsoft.com/
 *
 ***********************************************************************************************************************
 *
 * 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.vanda.beivandalibnetwork.utils;

import java.text.NumberFormat;

import org.json.JSONException;
import org.json.JSONObject;

import android.os.Parcel;
import android.text.TextUtils;

/**
 * 
 * @author jgnan1981@163.com
 *
 */
public final class CommonUtils {
    private final static String FILE_PROTOCAL = "file://";

    public static String formatNumber(int num) {
        return NumberFormat.getInstance().format(num);
    }

    /**
     * Change something to string
     * @param obj
     * @return
     */
    public static String str(Object obj) {
        return obj == null ? null : obj.toString();
    }

    /**
     * ?
     * @param clazz1
     * @param clazz2
     * @return
     */
    public static boolean isAssignable(Class<?> clazz1, Class<?> clazz2) {
        if (clazz1 == null || clazz2 == null)
            return false;
        return clazz1.isAssignableFrom(clazz2) || clazz2.isAssignableFrom(clazz1);
    }

    /**
     * ?
     * @param clazz1
     * @param clazz2
     * @return
     */
    public static boolean isAssignable(Object obj, Class<?> clazz) {
        return isAssignable(obj == null ? null : obj.getClass(), clazz);
    }

    /**
     * URL???
     * @param url
     * @return
     */
    public static String getFileNameFromUrl(String url) {
        if (url == null)
            return null;
        String[] segs = url.split("/");
        return segs[segs.length - 1];
    }

    public static String readString(Parcel in) {
        String val = in.readString();
        return TextUtils.isEmpty(val) || val.equals("null") ? null : val;
    }

    public static String readString(JSONObject json, String name) throws JSONException {
        String val = json.has(name) ? json.getString(name) : null;
        return TextUtils.isEmpty(val) || val.equals("null") ? null : val;
    }

    public static String addFilePrefix(String dataString) {
        return dataString != null && !dataString.startsWith(FILE_PROTOCAL) ? FILE_PROTOCAL + dataString
                : dataString;
    }

}