com.liferay.portal.kernel.servlet.DynamicServletRequest Maven / Gradle / Ivy
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Contains interfaces for the portal services. Interfaces are only loaded by the global class loader and are shared by all plugins.
/**
* Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*/
package com.liferay.portal.kernel.servlet;
import com.liferay.portal.kernel.util.ArrayUtil;
import com.liferay.portal.kernel.util.CharPool;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.StringUtil;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
/**
* @author Brian Wing Shun Chan
* @author Shuyang Zhou
*/
public class DynamicServletRequest extends HttpServletRequestWrapper {
public static final String DYNAMIC_QUERY_STRING = "DYNAMIC_QUERY_STRING";
public static HttpServletRequest addQueryString(
HttpServletRequest request, String queryString) {
return addQueryString(request, queryString, true);
}
public static HttpServletRequest addQueryString(
HttpServletRequest request, String queryString, boolean inherit) {
String[] parameters = StringUtil.split(queryString, CharPool.AMPERSAND);
if (parameters.length == 0) {
return request;
}
Map parameterMap = new HashMap();
for (String parameter : parameters) {
String[] parameterParts = StringUtil.split(
parameter, CharPool.EQUAL);
String name = parameterParts[0];
String value = StringPool.BLANK;
if (parameterParts.length == 2) {
value = parameterParts[1];
}
String[] values = parameterMap.get(name);
if (values == null) {
parameterMap.put(name, new String[] {value});
}
else {
String[] newValues = new String[values.length + 1];
System.arraycopy(values, 0, newValues, 0, values.length);
newValues[newValues.length - 1] = value;
parameterMap.put(name, newValues);
}
}
request = new DynamicServletRequest(request, parameterMap, inherit);
request.setAttribute(DYNAMIC_QUERY_STRING, queryString);
return request;
}
public DynamicServletRequest(HttpServletRequest request) {
this(request, null, true);
}
public DynamicServletRequest(HttpServletRequest request, boolean inherit) {
this(request, null, inherit);
}
public DynamicServletRequest(
HttpServletRequest request, Map params) {
this(request, params, true);
}
public DynamicServletRequest(
HttpServletRequest request, Map params,
boolean inherit) {
super(request);
_params = new HashMap();
_inherit = inherit;
if (params != null) {
_params.putAll(params);
}
if (_inherit && (request instanceof DynamicServletRequest)) {
DynamicServletRequest dynamicRequest =
(DynamicServletRequest)request;
setRequest(dynamicRequest.getRequest());
params = dynamicRequest.getDynamicParameterMap();
for (Map.Entry entry : params.entrySet()) {
String name = entry.getKey();
String[] oldValues = entry.getValue();
String[] curValues = _params.get(name);
if (curValues == null) {
_params.put(name, oldValues);
}
else {
String[] newValues = ArrayUtil.append(oldValues, curValues);
_params.put(name, newValues);
}
}
}
}
public void appendParameter(String name, String value) {
String[] values = _params.get(name);
if (values == null) {
values = new String[] {value};
}
else {
String[] newValues = new String[values.length + 1];
System.arraycopy(values, 0, newValues, 0, values.length);
newValues[newValues.length - 1] = value;
values = newValues;
}
_params.put(name, values);
}
public Map getDynamicParameterMap() {
return _params;
}
@Override
public String getParameter(String name) {
String[] values = _params.get(name);
if (_inherit && (values == null)) {
return super.getParameter(name);
}
if (ArrayUtil.isNotEmpty(values)) {
return values[0];
}
else {
return null;
}
}
@Override
public Map getParameterMap() {
Map map = new HashMap();
if (_inherit) {
map.putAll(super.getParameterMap());
}
map.putAll(_params);
return map;
}
@Override
public Enumeration getParameterNames() {
Set names = new LinkedHashSet();
if (_inherit) {
Enumeration enu = super.getParameterNames();
while (enu.hasMoreElements()) {
names.add(enu.nextElement());
}
}
names.addAll(_params.keySet());
return Collections.enumeration(names);
}
@Override
public String[] getParameterValues(String name) {
String[] values = _params.get(name);
if (_inherit && (values == null)) {
return super.getParameterValues(name);
}
return values;
}
public void setParameter(String name, String value) {
_params.put(name, new String[] {value});
}
public void setParameterValues(String name, String[] values) {
_params.put(name, values);
}
private boolean _inherit;
private Map _params;
}