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// ***************************************************************************************************************************
// * 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.juneau.config.event;
import static org.apache.juneau.internal.StringUtils.*;
import static org.apache.juneau.config.event.ConfigEventType.*;
import java.util.*;
import org.apache.juneau.annotation.*;
import org.apache.juneau.internal.*;
/**
* Represents a change to a config.
*/
@BeanIgnore
public class ConfigEvent {
private final ConfigEventType type;
private final String section, key, value, comment;
private final List preLines;
private final String modifiers;
private ConfigEvent(ConfigEventType type, String section, String key, String value, String modifiers, String comment, List preLines) {
this.type = type;
this.section = section;
this.key = key;
this.value = value;
this.comment = comment;
this.preLines = preLines;
this.modifiers = modifiers;
}
//---------------------------------------------------------------------------------------------
// Static creators.
//---------------------------------------------------------------------------------------------
/**
* Sets or replaces a value in a configuration.
*
* @param section
* The section name.
* Must not be null.
* @param key
* The entry name.
* Must not be null.
* @param value
* The entry value.
* Can be null to remove an entry.
* @param comment
* Optional comment string to add on the same line as the entry.
* @param modifiers
* Optional entry modifiers.
* @param prelines
* Comment lines that occur before this entry.
* Must not be null.
* @return
* A new {@link ConfigEvent} object.
*/
public static ConfigEvent setEntry(String section, String key, String value, String modifiers, String comment, List prelines) {
return new ConfigEvent(SET_ENTRY, section, key, value, modifiers, comment, prelines);
}
/**
* Removes a value from a configuration.
*
* @param section
* The section name.
* Must not be null.
* @param key
* The entry name.
* Must not be null.
* @return
* A new {@link ConfigEvent} object.
*/
public static ConfigEvent removeEntry(String section, String key) {
return new ConfigEvent(REMOVE_ENTRY, section, key, null, null, null, null);
}
/**
* Adds a new empty section to the config.
*
* @param section
* The section name.
* @param prelines
* Comment lines that occur before this section.
* Must not be null.
* @return
* A new {@link ConfigEvent} object.
*/
public static ConfigEvent setSection(String section, List prelines) {
return new ConfigEvent(SET_SECTION, section, null, null, null, null, prelines);
}
/**
* Removes a section from the config.
*
* @param section
* The section name.
* @return
* A new {@link ConfigEvent} object.
*/
public static ConfigEvent removeSection(String section) {
return new ConfigEvent(REMOVE_SECTION, section, null, null, null, null, null);
}
//---------------------------------------------------------------------------------------------
// Instance methods.
//---------------------------------------------------------------------------------------------
/**
* Returns the event type.
*
* @return The event type.
*/
public ConfigEventType getType() {
return type;
}
/**
* Returns the section name.
*
* @return The section name.
*/
public String getSection() {
return section;
}
/**
* Returns the entry name.
*
* @return The entry name.
*/
public String getKey() {
return key;
}
/**
* Returns the entry value.
*
* @return The entry value.
*/
public String getValue() {
return value;
}
/**
* Returns the entry comment.
*
* @return The entry comment.
*/
public String getComment() {
return comment;
}
/**
* Returns the section or entry lines.
*
* @return The section or entry lines.
*/
public List getPreLines() {
return preLines;
}
/**
* Returns the modifiers on this entry.
*
* @return
* The modifier characters.
* Never null.
*/
public String getModifiers() {
return modifiers;
}
@Override /* Object */
public String toString() {
switch(type) {
case REMOVE_SECTION:
return "REMOVE_SECTION("+section+")";
case REMOVE_ENTRY:
return "REMOVE_ENTRY("+section+(section.isEmpty() ? "" : "/")+key+")";
case SET_SECTION:
return "SET_SECTION("+section+", preLines="+StringUtils.join(preLines, '|')+")";
case SET_ENTRY:
StringBuilder out = new StringBuilder("SET(");
out.append(key);
if (modifiers != null)
out.append(modifiers);
out.append(" = ");
String val = value == null ? "null" : value;
if (val.indexOf('\n') != -1)
val = val.replaceAll("(\\r?\\n)", "$1\t");
if (val.indexOf('#') != -1)
val = val.replaceAll("#", "\\\\#");
out.append(val);
if (isNotEmpty(comment))
out.append(" # ").append(comment);
out.append(')');
return out.toString();
default:
return null;
}
}
}
