/*
* Copyright 2007 Kasper B. Graversen
*
* 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 org.supercsv.comment;
/**
* CommentMatcher that matches lines that begin with a specified String.
*/
public class CommentStartsWith implements CommentMatcher {
private final String value;
/**
* Constructs a new <tt>CommentStartsWith</tt> comment matcher.
*
* @param value
* the String a line must start with to be a comment
* @throws NullPointerException
* if value is null
* @throws IllegalArgumentException
* if value is empty
*/
public CommentStartsWith(final String value) {
if( value == null ) {
throw new NullPointerException("value should not be null");
} else if( value.length() == 0 ) {
throw new IllegalArgumentException("value should not be empty");
}
this.value = value;
}
/**
* {@inheritDoc}
*/
public boolean isComment(String line) {
return line.startsWith(value);
}
}
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