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    • ymock-util-1.0.5.src.main.java.com.ymock.util.PreFormatter Maven / Gradle / Ivy

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    /**
 * Copyright (c) 2011-2012, yMock.com
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met: 1) Redistributions of source code must retain the above
 * copyright notice, this list of conditions and the following
 * disclaimer. 2) Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following
 * disclaimer in the documentation and/or other materials provided
 * with the distribution. 3) Neither the name of the yMock.com nor
 * the names of its contributors may be used to endorse or promote
 * products derived from this software without specific prior written
 * permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.ymock.util;

import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Processor of formatting string and arguments, before sending it to
 * {@link String#format(String,Object[])}.
 *
 * @author Marina Kosenko ([email protected])
 * @author Yegor Bugayenko ([email protected])
 * @version $Id: PreFormatter.java 324 2012-02-26 22:31:04Z guard $
 * @since 1.0.4
 */
final class PreFormatter {

    /**
     * The formatting string.
     */
    private transient String format;

    /**
     * List of arguments.
     */
    private transient List arguments;

    /**
     * Public ctor.
     * @param fmt The formatting string
     * @param args The list of arguments
     */
    public PreFormatter(final String fmt, final Object... args) {
        this.process(fmt, args);
    }

    /**
     * Get new formatting string.
     * @return The formatting text
     */
    public String getFormat() {
        return this.format;
    }

    /**
     * Get new list of arguments.
     * @return The list of arguments
     */
    public Object[] getArguments() {
        return this.arguments.toArray(new Object[]{});
    }

    /**
     * Process the data provided.
     * @param fmt The formatting string
     * @param args The list of arguments
     */
    private void process(final String fmt, final Object[] args) {
        this.arguments = new CopyOnWriteArrayList();
        final StringBuffer buf = new StringBuffer();
        final Pattern pattern = Pattern.compile(
            // @checkstyle LineLength (1 line)
            "%(?:\\d+\\$)?(\\[([A-Za-z\\-\\.0-9]+)\\])?[\\+\\-]?(?:\\d*(?:\\.\\d+)?)?[a-zA-Z%]"
        );
        final Matcher matcher = pattern.matcher(fmt);
        int pos = 0;
        while (matcher.find()) {
            final String decor = matcher.group(2);
            if (decor == null) {
                matcher.appendReplacement(
                    buf,
                    Matcher.quoteReplacement(matcher.group())
                );
                this.arguments.add(args[pos]);
            } else {
                matcher.appendReplacement(
                    buf,
                    Matcher.quoteReplacement(
                        matcher.group().replace(matcher.group(1), "")
                    )
                );
                try {
                    this.arguments.add(DecorsManager.decor(decor, args[pos]));
                } catch (DecorException ex) {
                    this.arguments.add(String.format("[%s]", ex.getMessage()));
                }
            }
            pos += 1;
        }
        matcher.appendTail(buf);
        this.format = buf.toString();
    }

}
    
    
    
    

    




    
    
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