org.mapfish.print.output.Values Maven / Gradle / Ivy
package org.mapfish.print.output;
import com.google.common.base.Predicate;
import com.google.common.collect.Maps;
import com.vividsolutions.jts.util.Assert;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.mapfish.print.attribute.Attribute;
import org.mapfish.print.attribute.DataSourceAttribute;
import org.mapfish.print.attribute.HttpRequestHeadersAttribute;
import org.mapfish.print.attribute.PrimitiveAttribute;
import org.mapfish.print.attribute.ReflectiveAttribute;
import org.mapfish.print.config.PDFConfig;
import org.mapfish.print.config.Template;
import org.mapfish.print.http.ConfigFileResolvingHttpRequestFactory;
import org.mapfish.print.http.MfClientHttpRequestFactory;
import org.mapfish.print.http.MfClientHttpRequestFactoryImpl;
import org.mapfish.print.parser.MapfishParser;
import org.mapfish.print.servlet.MapPrinterServlet;
import org.mapfish.print.wrapper.ObjectMissingException;
import org.mapfish.print.wrapper.PObject;
import org.mapfish.print.wrapper.json.PJsonArray;
import org.mapfish.print.wrapper.json.PJsonObject;
import org.mapfish.print.wrapper.multi.PMultiObject;
import java.io.File;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import static org.mapfish.print.servlet.MapPrinterServlet.JSON_REQUEST_HEADERS;
/**
* Values that go into a processor from previous processors in the processor processing graph.
*
* @author Jesse
*/
public final class Values {
/**
* The key that is used to store the task directory in the values map.
*/
public static final String TASK_DIRECTORY_KEY = "tempTaskDirectory";
/**
* The key that is used to store {@link org.mapfish.print.http.MfClientHttpRequestFactory}.
*/
public static final String CLIENT_HTTP_REQUEST_FACTORY_KEY = "clientHttpRequestFactory";
/**
* The key that is used to store {@link org.mapfish.print.config.Template}.
*/
public static final String TEMPLATE_KEY = "template";
/**
* The key for the values object for the {@link org.mapfish.print.config.PDFConfig} object.
*/
public static final String PDF_CONFIG = "pdfConfig";
/**
* The key for the values object for the subreport directory.
*/
public static final String SUBREPORT_DIR = "SUBREPORT_DIR";
private final Map values = new ConcurrentHashMap();
/**
* Constructor.
*
* @param values initial values.
*/
public Values(final Map values) {
this.values.putAll(values);
}
/**
* Constructor.
*/
public Values() {
// nothing to do
}
/**
* Construct from the json request body and the associated template.
*
* @param requestData the json request data
* @param template the template
* @param parser the parser to use for parsing the request data.
* @param taskDirectory the temporary directory for this printing task.
* @param httpRequestFactory a factory for making http requests.
* @param jasperTemplateBuild the directory where the jasper templates are compiled to
*/
public Values(final PJsonObject requestData,
final Template template,
final MapfishParser parser,
final File taskDirectory,
final MfClientHttpRequestFactoryImpl httpRequestFactory,
final File jasperTemplateBuild) throws JSONException {
Assert.isTrue(!taskDirectory.mkdirs() || taskDirectory.exists());
// add task dir. to values so that all processors can access it
this.values.put(TASK_DIRECTORY_KEY, taskDirectory);
this.values.put(CLIENT_HTTP_REQUEST_FACTORY_KEY, new ConfigFileResolvingHttpRequestFactory(httpRequestFactory,
template.getConfiguration()));
this.values.put(TEMPLATE_KEY, template);
this.values.put(PDF_CONFIG, template.getPdfConfig());
this.values.put(SUBREPORT_DIR, jasperTemplateBuild.getAbsolutePath());
final PJsonObject jsonAttributes = requestData.getJSONObject(MapPrinterServlet.JSON_ATTRIBUTES);
Map attributes = Maps.newHashMap(template.getAttributes());
populateFromAttributes(template, parser, attributes, jsonAttributes);
}
/**
* Process the requestJsonAttributes using the attributes and the MapfishParser and add all resulting values to this values object.
*
* @param template the template of the current request.
* @param parser the parser to use for parsing the request data.
* @param attributes the attributes that will be used to add values to this values object
* @param requestJsonAttributes the json data for populating the attribute values
* @throws JSONException
*/
public void populateFromAttributes(@Nonnull final Template template,
@Nonnull final MapfishParser parser,
@Nonnull final Map attributes,
@Nonnull final PObject requestJsonAttributes) throws JSONException {
if (requestJsonAttributes.has(JSON_REQUEST_HEADERS) &&
requestJsonAttributes.getObject(JSON_REQUEST_HEADERS).has(JSON_REQUEST_HEADERS)) {
if (!attributes.containsKey(MapPrinterServlet.JSON_REQUEST_HEADERS)) {
attributes.put(MapPrinterServlet.JSON_REQUEST_HEADERS, new HttpRequestHeadersAttribute());
}
}
for (String attributeName : attributes.keySet()) {
final Attribute attribute = attributes.get(attributeName);
final Object value;
try {
if (attribute instanceof PrimitiveAttribute) {
PrimitiveAttribute pAtt = (PrimitiveAttribute) attribute;
Object defaultVal = pAtt.getDefault();
PObject jsonToUse = requestJsonAttributes;
if (defaultVal != null) {
final JSONObject obj = new JSONObject();
obj.put(attributeName, defaultVal);
PObject[] pValues = new PObject[]{requestJsonAttributes, new PJsonObject(obj, "default_" + attributeName)};
jsonToUse = new PMultiObject(pValues);
}
value = parser.parsePrimitive(attributeName, pAtt, jsonToUse);
} else if (attribute instanceof DataSourceAttribute) {
DataSourceAttribute dsAttribute = (DataSourceAttribute) attribute;
value = dsAttribute.parseAttribute(parser, template, requestJsonAttributes.optArray(attributeName));
} else if (attribute instanceof ReflectiveAttribute) {
boolean errorOnExtraParameters = template.getConfiguration().isThrowErrorOnExtraParameters();
ReflectiveAttribute rAtt = (ReflectiveAttribute) attribute;
value = rAtt.createValue(template);
PObject pValue = requestJsonAttributes.optObject(attributeName);
if (pValue != null) {
PObject[] pValues = new PObject[]{pValue, rAtt.getDefaultValue()};
pValue = new PMultiObject(pValues);
} else {
final Object valueOpt = requestJsonAttributes.opt(attributeName);
if (valueOpt != null) {
String valueAsString;
if (valueOpt instanceof PJsonArray) {
valueAsString = ((PJsonArray) valueOpt).getInternalArray().toString(2);
} else if (valueOpt instanceof JSONArray) {
valueAsString = ((JSONArray) valueOpt).toString(2);
} else {
valueAsString = valueOpt.toString();
}
final String message = "Expected a JSON Object as the value for the element with the path: '" +
requestJsonAttributes.getPath(attributeName) + "' but instead "
+ "got a '" + valueOpt.getClass().toString() +
"'.\nThe value is: \n" + valueAsString;
throw new IllegalArgumentException(message);
}
pValue = rAtt.getDefaultValue();
}
parser.parse(errorOnExtraParameters, pValue, value);
} else {
throw new IllegalArgumentException("Unsupported attribute type: " + attribute);
}
put(attributeName, value);
} catch (ObjectMissingException e) {
throw e;
} catch (IllegalArgumentException e) {
throw e;
} catch (Throwable e) {
String templateName = "unknown";
for (Map.Entry entry : template.getConfiguration().getTemplates().entrySet()) {
if (entry.getValue() == template) {
templateName = entry.getKey();
}
}
String defaults = "";
if (attribute instanceof ReflectiveAttribute) {
ReflectiveAttribute reflectiveAttribute = (ReflectiveAttribute) attribute;
defaults = "\n\n The attribute defaults are: " + reflectiveAttribute.getDefaultValue();
}
String errorMsg = "An error occurred when creating a value from the '" + attributeName + "' attribute for the '" +
templateName + "' template.\n\nThe JSON is: \n" + requestJsonAttributes + defaults;
throw new AttributeParsingException(errorMsg, e);
}
}
}
/**
* Create a new instance and copy the required elements from the other values object.
* (IE working directory, http client factory, etc...)
*
* @param values the values containing the required elements
*/
public Values(@Nonnull final Values values) {
addRequiredValues(values);
}
/**
* Add the elements that all values objects require from the provided values object.
*
* @param sourceValues the values object containing the required elements
*/
public void addRequiredValues(@Nonnull final Values sourceValues) {
Object taskDirectory = sourceValues.getObject(TASK_DIRECTORY_KEY, Object.class);
MfClientHttpRequestFactory requestFactory = sourceValues.getObject(CLIENT_HTTP_REQUEST_FACTORY_KEY,
MfClientHttpRequestFactory.class);
Template template = sourceValues.getObject(TEMPLATE_KEY, Template.class);
PDFConfig pdfConfig = sourceValues.getObject(PDF_CONFIG, PDFConfig.class);
String subReportDir = sourceValues.getObject(SUBREPORT_DIR, String.class);
this.values.put(TASK_DIRECTORY_KEY, taskDirectory);
this.values.put(CLIENT_HTTP_REQUEST_FACTORY_KEY, requestFactory);
this.values.put(TEMPLATE_KEY, template);
this.values.put(PDF_CONFIG, pdfConfig);
this.values.put(SUBREPORT_DIR, subReportDir);
}
/**
* Put a new value in map.
*
* @param key id of the value for looking up.
* @param value the value.
*/
public void put(final String key, final Object value) {
if (TASK_DIRECTORY_KEY.equals(key) && this.values.keySet().contains(TASK_DIRECTORY_KEY)) {
// ensure that no one overwrites the task directory
throw new IllegalArgumentException("Invalid key: " + key);
}
if (value == null) {
throw new IllegalArgumentException("A null value was attempted to be put into the values object under key: " + key);
}
this.values.put(key, value);
}
/**
* Get all parameters.
*/
public Map asMap() {
return this.values;
}
/**
* Get a value as a string.
*
* @param key the key for looking up the value.
*/
public String getString(final String key) {
return (String) this.values.get(key);
}
/**
* Get a value as a double.
*
* @param key the key for looking up the value.
*/
public Double getDouble(final String key) {
return (Double) this.values.get(key);
}
/**
* Get a value as a integer.
*
* @param key the key for looking up the value.
*/
public Integer getInteger(final String key) {
return (Integer) this.values.get(key);
}
/**
* Get a value as a string.
*
* @param key the key for looking up the value.
* @param type the type of the object
* @param the type
*/
public V getObject(final String key, final Class type) {
final Object obj = this.values.get(key);
return type.cast(obj);
}
/**
* Return true if the identified value is present in this values.
*
* @param key the key to check for.
*/
public boolean containsKey(final String key) {
return this.values.containsKey(key);
}
/**
* Get a boolean value from the values or null.
*
* @param key the look up key of the value
*/
@Nullable
public Boolean getBoolean(@Nonnull final String key) {
return (Boolean) this.values.get(key);
}
/**
* Remove a value from this object.
*
* @param key key of entry to remove.
*/
public void remove(final String key) {
this.values.remove(key);
}
/**
* Find all the values of the requested type.
*
* @param valueTypeToFind the type of the value to return.
* @param the type of the value to find.
* @return the key, value pairs found.
*/
@SuppressWarnings("unchecked")
public Map find(final Class valueTypeToFind) {
final Map filtered = Maps.filterEntries(this.values, new Predicate>() {
@Override
public boolean apply(@Nullable final Map.Entry input) {
return input != null && valueTypeToFind.isInstance(input.getValue());
}
});
return (Map) filtered;
}
@Override
public String toString() {
return this.values.toString();
}
}
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