org.apache.camel.component.ssh.SshShellOutputStringHelper Maven / Gradle / Ivy
/*
* 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 org.apache.camel.component.ssh;
import java.util.Optional;
import java.util.function.Function;
import org.apache.camel.util.StringHelper;
public final class SshShellOutputStringHelper {
private SshShellOutputStringHelper() {
// empty const
}
/**
* Returns the string before the given token
* If this token is repeating, than return all text
* before the last token
*
* @param text the text
* @param before the token which is expected to be repeated
* @return the text before the last token, or null if text does not
* contain the token
*/
public static String beforeLast(String text, String before) {
if (!text.contains(before)) {
return null;
}
return text.substring(0, text.lastIndexOf(before));
}
/**
* Returns an object before the given last token
*
* @param text the text
* @param beforeLast the last token
* @param mapper a mapping function to convert the string before the token to type T
* @return an Optional describing the result of applying a mapping function to the text before the token.
*/
public static Optional beforeLast(String text, String beforeLast, Function mapper) {
String result = beforeLast(text, beforeLast);
if (result == null) {
return Optional.empty();
} else {
return Optional.ofNullable(mapper.apply(result));
}
}
/**
* Returns the string between the given tokens
*
* @param text the text
* @param after is the starting token to skip the text before that.
* @param beforeLast the last token
* @return the text between the tokens, or null if text does not contain the tokens
*/
public static String betweenBeforeLast(String text, String after, String beforeLast) {
text = StringHelper.after(text, after);
if (text == null) {
return null;
}
return beforeLast(text, beforeLast);
}
/**
* Returns an object between the given token
*
* @param text the text
* @param after the before last token
* @param before the after token
* @param mapper a mapping function to convert the string between the token to type T
* @return an Optional describing the result of applying a mapping function to the text between the token.
*/
public static Optional betweenBeforeLast(String text, String after, String before, Function mapper) {
String result = betweenBeforeLast(text, after, before);
if (result == null) {
return Optional.empty();
} else {
return Optional.ofNullable(mapper.apply(result));
}
}
}