alexh.LiteJoiner Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of dynamics Show documentation

Java library for handling nested dynamic data

There is a newer version: 4.0

/*
 * Copyright 2015 Alex Butler
 *
 * 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 alexh;

import java.util.Iterator;

/** Poor mans com.google.common.base.Joiner, a simple non-null handling replacement to eliminate Guava dependency */
public class LiteJoiner {

    public static LiteJoiner on(String separator) {
        return new LiteJoiner(separator);
    }

    private final String separator;

    private LiteJoiner(String separator) {
        this.separator = separator;
    }

    public String join(Iterable parts) {
        final StringBuilder joined = new StringBuilder();
        final Iterator partIterator = parts.iterator();
        while (partIterator.hasNext()) {
            joined.append(partIterator.next());
            if (partIterator.hasNext()) joined.append(separator);
        }
        return joined.toString();
    }
}