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/*
* The MIT License
*
* Copyright (c) 2009-2023 PrimeTek Informatics
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.primefaces.util;
import javax.faces.context.FacesContext;
public class SharedStringBuilder {
private SharedStringBuilder() {
}
/**
* Get a shared {@link StringBuilder} instance.
* This is required as e.g. 100 e.g. {@link org.primefaces.expression.SearchExpressionFacade#resolveClientId} calls would create
* 300 {@link StringBuilder} instances!
*
* @param context The {@link FacesContext}
* @param key The key for the {@link FacesContext} attributes.
* @param initialSize The initial size for the {@link StringBuilder}.
* @return The shared {@link StringBuilder} instance
*/
public static StringBuilder get(FacesContext context, String key, int initialSize) {
StringBuilder builder = (StringBuilder) context.getAttributes().get(key);
if (builder == null) {
builder = new StringBuilder(initialSize);
context.getAttributes().put(key, builder);
}
else {
builder.setLength(0);
}
return builder;
}
/**
* Get a shared {@link StringBuilder} instance.
* This is required as e.g. 100 e.g. {@link org.primefaces.expression.SearchExpressionFacade#resolveClientId} calls would create
* 300 {@link StringBuilder} instances!
*
* @param context The {@link FacesContext}
* @param key The key for the {@link FacesContext} attributes.
* @return The shared {@link StringBuilder} instance
*/
public static StringBuilder get(FacesContext context, String key) {
return get(context, key, 16);
}
/**
* Get a shared {@link StringBuilder} instance.
* This is required as e.g. 100 e.g. {@link org.primefaces.expression.SearchExpressionFacade#resolveClientId} calls would create
* 300 {@link StringBuilder} instances!
*
* @param key The key for the {@link FacesContext} attributes.
* @return The shared {@link StringBuilder} instance
*/
public static StringBuilder get(String key) {
return get(FacesContext.getCurrentInstance(), key);
}
/**
* Get a shared {@link StringBuilder} instance.
* This is required as e.g. 100 e.g. {@link org.primefaces.expression.SearchExpressionFacade#resolveClientId} calls would create
* 300 {@link StringBuilder} instances!
*
* @param key The key for the {@link FacesContext} attributes.
* @param initialSize The initial size for the {@link StringBuilder}.
* @return The shared {@link StringBuilder} instance
*/
public static StringBuilder get(String key, int initialSize) {
return get(FacesContext.getCurrentInstance(), key, initialSize);
}
}