com.hp.hpl.jena.sparql.util.StringUtils.java Source code

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Here is the source code for com.hp.hpl.jena.sparql.util.StringUtils.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.hp.hpl.jena.sparql.util;

import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.regex.Pattern;

import org.apache.commons.lang3.time.FastDateFormat;
import org.apache.jena.atlas.iterator.Iter;

/** @see org.apache.jena.atlas.lib.StrUtils */
public class StringUtils {
    static NumberFormat integerFormat = NumberFormat.getNumberInstance();

    public static String str(long v) {
        return integerFormat.format(v);
    }

    static FastDateFormat dateTimeFormat = FastDateFormat.getInstance("yyyy/MM/dd HH:mm:ss");

    public static String str(Date date) {
        return dateTimeFormat.format(date);
    }

    static DecimalFormat decimalFormat = new DecimalFormat("#,##0.0");

    public static String str(float value) {
        return decimalFormat.format(value);
    }

    public static String str(double value) {
        return decimalFormat.format(value);
    }

    public static <T> String str(T[] array) {
        return Arrays.asList(array).toString();
    }

    private static Pattern p = Pattern.compile("http:[^ \n]*[#/]([^/ \n]*)");

    /** Abbreviate, crudely, URI in strings, leaving only their last component. */
    public static String printAbbrev(Object obj) {
        if (obj == null)
            return "<null>";
        String x = obj.toString();
        return p.matcher(x).replaceAll("::$1");
    }

    /** Abbreviate, crudely, URI in strings, leaving only their last component. */
    public static <T> String printAbbrevList(List<T> objs) {
        String x = Iter.asString(objs, "\n");
        return printAbbrev(x);
    }
}