org.smartparam.editor.model.AbstractEntityKey Maven / Gradle / Ivy
/*
* Copyright 2013 Adam Dubiel, Przemek Hertel.
*
* 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.smartparam.editor.model;
import java.util.Arrays;
/**
*
* @author Adam Dubiel
*/
public abstract class AbstractEntityKey {
private static final String SEPARATOR = "-";
private static final int KEY_LENGTH = 50;
protected final String[] parse(String repositorySymbol, String key) {
if (key == null || key.isEmpty()) {
throw new IllegalArgumentException("Key can't be null nor empty.");
}
String[] keySegments = key.split(SEPARATOR);
if (keySegments.length == 0) {
throw new IllegalArgumentException("Couldn't parse key " + key + ". Looks like it's segments are note separated using standard separator.");
}
if (!repositorySymbol.equals(keySegments[0])) {
throw new IllegalArgumentException("Key " + key + " can't be interpreted as valid key for " + repositorySymbol + " repository.");
}
return Arrays.copyOfRange(keySegments, 1, keySegments.length);
}
protected final String format(String... keySegments) {
StringBuilder keyBuilder = new StringBuilder(KEY_LENGTH);
for (String segment : keySegments) {
keyBuilder.append(segment).append(SEPARATOR);
}
keyBuilder.deleteCharAt(keyBuilder.length() - 1);
return keyBuilder.toString();
}
}