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net.sf.jasperreports.web.util.JacksonUtil Maven / Gradle / Ivy
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2014 TIBCO Software Inc. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports 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 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see [email protected] )
*/
public class JacksonUtil
{
/**
*
*/
private static final String OBJECT_MAPPER_CONTEXT_KEY = "net.sf.jasperreports.jackson.object.mapper";
private JasperReportsContext jasperReportsContext;
/**
*
*/
private JacksonUtil(JasperReportsContext jasperReportsContext)
{
this.jasperReportsContext = jasperReportsContext;
}
/**
*
*/
public static JacksonUtil getInstance(JasperReportsContext jasperReportsContext)
{
return new JacksonUtil(jasperReportsContext);
}
private ObjectMapper getObjectMapper()
{
ObjectMapper mapper = (ObjectMapper)jasperReportsContext.getValue(OBJECT_MAPPER_CONTEXT_KEY);
if (mapper == null)
{
mapper = new ObjectMapper();
List jacksonMappings = jasperReportsContext.getExtensions(JacksonMapping.class);
for (JacksonMapping jacksonMapping : jacksonMappings)
{
register(mapper, jacksonMapping);
}
mapper.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true);
jasperReportsContext.setValue(OBJECT_MAPPER_CONTEXT_KEY, mapper);
}
return mapper;
}
/**
*
*/
private static void register(ObjectMapper mapper, JacksonMapping mapping)
{
try
{
Class clazz = Class.forName(mapping.getClassName());
mapper.registerSubtypes(new NamedType(clazz, mapping.getName()));
}
catch (ClassNotFoundException e)
{
throw new JRRuntimeException(e);
}
}
/**
*
*/
public T loadObject(String jsonData, Class clazz)
{
T result = null;
if (jsonData != null)
{
ObjectMapper mapper = getObjectMapper();
try
{
result = mapper.readValue(jsonData, clazz);
}
catch (JsonParseException e)
{
throw new JRRuntimeException(e);
}
catch (JsonMappingException e)
{
throw new JRRuntimeException(e);
}
catch (IOException e)
{
throw new JRRuntimeException(e);
}
}
return result;
}
/**
*
*/
public List loadList(String jsonData, Class clazz)
{
List result = null;
if (jsonData != null)
{
ObjectMapper mapper = getObjectMapper();
try
{
result = mapper.readValue(jsonData, mapper.getTypeFactory().constructParametricType(List.class, clazz));
}
catch (JsonParseException e)
{
throw new JRRuntimeException(e);
}
catch (JsonMappingException e)
{
throw new JRRuntimeException(e);
}
catch (IOException e)
{
throw new JRRuntimeException(e);
}
}
return result;
}
/*
*
*/
public List loadAsList(String jsonData, Class clazz) {
List result = null;
if (jsonData != null) {
String trimmedData = jsonData.trim();
if (trimmedData.startsWith("{")) {
result = new ArrayList();
result.add(loadObject(trimmedData, clazz));
} else if (trimmedData.startsWith("[")) {
result = loadList(trimmedData, clazz);
}
}
return result;
}
/**
*
*/
public String getJsonString(Object object)
{
ObjectMapper mapper = getObjectMapper();
try
{
return mapper.writeValueAsString(object);
}
catch (JsonGenerationException e)
{
throw new JRRuntimeException(e);
}
catch (JsonMappingException e)
{
throw new JRRuntimeException(e);
}
catch (IOException e)
{
throw new JRRuntimeException(e);
}
}
/**
*
*/
public String getEscapedJsonString(Object object)
{
return getJsonString(object).replaceAll("\\\"", "\\\\\\\"");
}
/**
*
*/
public ObjectNode hyperlinkToJsonObject(JRPrintHyperlink hyperlink)
{
ObjectNode hyperlinkNode = getObjectMapper().createObjectNode();
addProperty(hyperlinkNode, "type", hyperlink.getLinkType());
addProperty(hyperlinkNode, "typeValue", hyperlink.getHyperlinkTypeValue().getName());
addProperty(hyperlinkNode, "target", hyperlink.getLinkTarget());
addProperty(hyperlinkNode, "targetValue", hyperlink.getHyperlinkTargetValue().getHtmlValue(), hyperlink.getLinkTarget());
addProperty(hyperlinkNode, "tooltip", hyperlink.getHyperlinkTooltip());
addProperty(hyperlinkNode, "anchor", hyperlink.getHyperlinkAnchor());
addProperty(hyperlinkNode, "page", String.valueOf(hyperlink.getHyperlinkPage()));
addProperty(hyperlinkNode, "reference", hyperlink.getHyperlinkReference());
JRPrintHyperlinkParameters hParams = hyperlink.getHyperlinkParameters();
if (hParams != null && hParams.getParameters().size() > 0)
{
ObjectNode params = getObjectMapper().createObjectNode();
for (JRPrintHyperlinkParameter hParam: hParams.getParameters())
{
if (hParam.getValue() != null)
{
if (Collection.class.isAssignableFrom(hParam.getValue().getClass()))
{
ArrayNode paramValues = getObjectMapper().createArrayNode();
Collection col = (Collection) hParam.getValue();
for (Iterator it = col.iterator(); it.hasNext();)
{
Object next = it.next();
paramValues.add(JRValueStringUtils.serialize(next.getClass().getName(), next));
}
params.put(hParam.getName(), paramValues);
}
else
{
params.put(hParam.getName(), JRValueStringUtils.serialize(hParam.getValueClass(), hParam.getValue()));
}
}
}
hyperlinkNode.put("params", params);
}
return hyperlinkNode;
}
/**
*
*/
public void addProperty(ObjectNode objectNode, String property, String value)
{
addProperty(objectNode, property, value, null);
}
/**
*
*/
public void addProperty(ObjectNode objectNode, String property, String value, String altValue)
{
if (value != null && !value.equals("null"))
{
objectNode.put(property, value);
}
else if (altValue != null && !altValue.equals("null"))
{
objectNode.put(property, altValue);
}
}
}
