Scala (console) has a very useful feature to inspect or dump variables / object values : scala> def b = Map("name" -> "Yudha", "age" -> 27)
b: scala.collection.immutable.Map[java.lang.String,Any] scala> b
res1: scala.collection.immutable.Map[java.lang.String,Any] = Map((name,Yudha), (age,27)) Inside our application, especially in Java programming language (although the techniques below obviously works with any JVM language like Scala and Groovy) sometimes we want to inspect/dump the content of an object/value. Probably for debugging or logging purposes. My two favorite techniques is just to serialize the Java object to JSON and/or XML. An added benefit is that it's possible to deserialize the dumped object representation back to an actual object if you want.
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.6.3</version>
</dependency>
Then use it:
import org.codehaus.jackson.JsonGenerationException;
import org.codehaus.jackson.map.JsonMappingException;
import org.codehaus.jackson.map.ObjectMapper;
import org.codehaus.jackson.map.SerializationConfig;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory; ..
Logger logger = LoggerFactory.getLogger(getClass());
@Test
public void level() throws ServiceException, JsonGenerationException, JsonMappingException, IOException {
MagentoServiceLocator locator = new MagentoServiceLocator();
Mage_Api_Model_Server_HandlerPortType port = locator.getMage_Api_Model_Server_HandlerPort();
String sessionId = port.login("...", "...");
logger.info(String.format("Session ID = %s", sessionId));
Map[] categories = (Map[]) port.call(sessionId, "catalog_category.level", new Object[] { null, null, 2 } );
ObjectMapper mapper = new ObjectMapper();
mapper.configure(SerializationConfig.Feature.INDENT_OUTPUT, true);
logger.info( mapper.writeValueAsString(categories) );
} Example output : 6883 [main] INFO id.co.bippo.shop.magentoclient.AppTest - [ {
"position" : "1",
"level" : "2",
"is_active" : "1",
"name" : "Gamis",
"category_id" : "3",
"parent_id" : 2
}, {
"position" : "2",
"level" : "2",
"is_active" : "1",
"name" : "Celana",
"category_id" : "5",
"parent_id" : 2
} ]
<dependency>
<groupId>xstream</groupId>
<artifactId>xstream</artifactId>
<version>1.2.2</version>
</dependency>
Use it:
import java.io.IOException;
import java.rmi.RemoteException;
import java.util.Map; import javax.xml.rpc.ServiceException; import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import com.thoughtworks.xstream.XStream;
...
@Test
public void infoXml() throws ServiceException, RemoteException {
MagentoServiceLocator locator = new MagentoServiceLocator();
Mage_Api_Model_Server_HandlerPortType port = locator.getMage_Api_Model_Server_HandlerPort();
String sessionId = port.login("...", "...");
logger.info(String.format("Session ID = %s", sessionId));
Map category = (Map) port.call(sessionId, "catalog_category.info",
new Object[] { 3 } );
XStream xstream = new XStream();
logger.info( xstream.toXML(category) );
} Sample output: 5949 [main] INFO id.co.bippo.shop.magentoclient.AppTest - <map>
<entry>
<string>position</string>
<string>1</string>
</entry>
<entry>
<string>custom_design</string>
<string></string>
</entry>
<entry>
<string>custom_use_parent_settings</string>
<string>0</string>
</entry>
<entry>
<string>custom_layout_update</string>
<string></string>
</entry>
<entry>
<string>include_in_menu</string>
<string>1</string>
</entry>
<entry>
<string>custom_apply_to_products</string>
<string>0</string>
</entry>
<entry>
<string>meta_keywords</string>
<string>gamis, busana muslim</string>
</entry>
<entry>
<string>available_sort_by</string>
<string></string>
</entry>
<entry>
<string>url_path</string>
<string>gamis.html</string>
</entry>
<entry>
<string>children</string>
<string></string>
</entry>
<entry>
<string>landing_page</string>
<null/>
</entry>
<entry>
<string>display_mode</string>
<string>PRODUCTS</string>
</entry>
<entry>
<string>level</string>
<string>2</string>
</entry>
<entry>
<string>description</string>
<string>Gamis untuk muslimah</string>
</entry>
<entry>
<string>name</string>
<string>Gamis</string>
</entry>
<entry>
<string>path</string>
<string>1/2/3</string>
</entry>
<entry>
<string>created_at</string>
<string>2010-12-24 11:37:41</string>
</entry>
<entry>
<string>children_count</string>
<string>0</string>
</entry>
<entry>
<string>is_anchor</string>
<string>1</string>
</entry>
<entry>
<string>url_key</string>
<string>gamis</string>
</entry>
<entry>
<string>parent_id</string>
<int>2</int>
</entry>
<entry>
<string>filter_price_range</string>
<null/>
</entry>
<entry>
<string>all_children</string>
<string>3</string>
</entry>
<entry>
<string>is_active</string>
<string>1</string>
</entry>
<entry>
<string>page_layout</string>
<string></string>
</entry>
<entry>
<string>image</string>
<null/>
</entry>
<entry>
<string>category_id</string>
<string>3</string>
</entry>
<entry>
<string>default_sort_by</string>
<null/>
</entry>
<entry>
<string>custom_design_from</string>
<null/>
</entry>
<entry>
<string>updated_at</string>
<string>2010-12-24 11:37:41</string>
</entry>
<entry>
<string>meta_description</string>
<string>Jual baju gamis untuk muslim</string>
</entry>
<entry>
<string>custom_design_to</string>
<null/>
</entry>
<entry>
<string>path_in_store</string>
<null/>
</entry>
<entry>
<string>meta_title</string>
<string>Gamis</string>
</entry>
<entry>
<string>increment_id</string>
<null/>
</entry>
</map> Which one is better? I personally prefer JSON, but fortunately, you always have a choice. :-)
b: scala.collection.immutable.Map[java.lang.String,Any] scala> b
res1: scala.collection.immutable.Map[java.lang.String,Any] = Map((name,Yudha), (age,27)) Inside our application, especially in Java programming language (although the techniques below obviously works with any JVM language like Scala and Groovy) sometimes we want to inspect/dump the content of an object/value. Probably for debugging or logging purposes. My two favorite techniques is just to serialize the Java object to JSON and/or XML. An added benefit is that it's possible to deserialize the dumped object representation back to an actual object if you want.
JSON Serialization with Jackson
Depend on Jackson (using Maven):<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.6.3</version>
</dependency>
Then use it:
import org.codehaus.jackson.JsonGenerationException;
import org.codehaus.jackson.map.JsonMappingException;
import org.codehaus.jackson.map.ObjectMapper;
import org.codehaus.jackson.map.SerializationConfig;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory; ..
Logger logger = LoggerFactory.getLogger(getClass());
@Test
public void level() throws ServiceException, JsonGenerationException, JsonMappingException, IOException {
MagentoServiceLocator locator = new MagentoServiceLocator();
Mage_Api_Model_Server_HandlerPortType port = locator.getMage_Api_Model_Server_HandlerPort();
String sessionId = port.login("...", "...");
logger.info(String.format("Session ID = %s", sessionId));
Map[] categories = (Map[]) port.call(sessionId, "catalog_category.level", new Object[] { null, null, 2 } );
ObjectMapper mapper = new ObjectMapper();
mapper.configure(SerializationConfig.Feature.INDENT_OUTPUT, true);
logger.info( mapper.writeValueAsString(categories) );
} Example output : 6883 [main] INFO id.co.bippo.shop.magentoclient.AppTest - [ {
"position" : "1",
"level" : "2",
"is_active" : "1",
"name" : "Gamis",
"category_id" : "3",
"parent_id" : 2
}, {
"position" : "2",
"level" : "2",
"is_active" : "1",
"name" : "Celana",
"category_id" : "5",
"parent_id" : 2
} ]
XML Serialization with XStream
As a pre-note, XStream can also handle JSON with either Jettison or its own JSON driver, however people usually prefer Jackson than XStream for JSON serialization. Maven dependency for XStream:<dependency>
<groupId>xstream</groupId>
<artifactId>xstream</artifactId>
<version>1.2.2</version>
</dependency>
Use it:
import java.io.IOException;
import java.rmi.RemoteException;
import java.util.Map; import javax.xml.rpc.ServiceException; import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import com.thoughtworks.xstream.XStream;
...
@Test
public void infoXml() throws ServiceException, RemoteException {
MagentoServiceLocator locator = new MagentoServiceLocator();
Mage_Api_Model_Server_HandlerPortType port = locator.getMage_Api_Model_Server_HandlerPort();
String sessionId = port.login("...", "...");
logger.info(String.format("Session ID = %s", sessionId));
Map category = (Map) port.call(sessionId, "catalog_category.info",
new Object[] { 3 } );
XStream xstream = new XStream();
logger.info( xstream.toXML(category) );
} Sample output: 5949 [main] INFO id.co.bippo.shop.magentoclient.AppTest - <map>
<entry>
<string>position</string>
<string>1</string>
</entry>
<entry>
<string>custom_design</string>
<string></string>
</entry>
<entry>
<string>custom_use_parent_settings</string>
<string>0</string>
</entry>
<entry>
<string>custom_layout_update</string>
<string></string>
</entry>
<entry>
<string>include_in_menu</string>
<string>1</string>
</entry>
<entry>
<string>custom_apply_to_products</string>
<string>0</string>
</entry>
<entry>
<string>meta_keywords</string>
<string>gamis, busana muslim</string>
</entry>
<entry>
<string>available_sort_by</string>
<string></string>
</entry>
<entry>
<string>url_path</string>
<string>gamis.html</string>
</entry>
<entry>
<string>children</string>
<string></string>
</entry>
<entry>
<string>landing_page</string>
<null/>
</entry>
<entry>
<string>display_mode</string>
<string>PRODUCTS</string>
</entry>
<entry>
<string>level</string>
<string>2</string>
</entry>
<entry>
<string>description</string>
<string>Gamis untuk muslimah</string>
</entry>
<entry>
<string>name</string>
<string>Gamis</string>
</entry>
<entry>
<string>path</string>
<string>1/2/3</string>
</entry>
<entry>
<string>created_at</string>
<string>2010-12-24 11:37:41</string>
</entry>
<entry>
<string>children_count</string>
<string>0</string>
</entry>
<entry>
<string>is_anchor</string>
<string>1</string>
</entry>
<entry>
<string>url_key</string>
<string>gamis</string>
</entry>
<entry>
<string>parent_id</string>
<int>2</int>
</entry>
<entry>
<string>filter_price_range</string>
<null/>
</entry>
<entry>
<string>all_children</string>
<string>3</string>
</entry>
<entry>
<string>is_active</string>
<string>1</string>
</entry>
<entry>
<string>page_layout</string>
<string></string>
</entry>
<entry>
<string>image</string>
<null/>
</entry>
<entry>
<string>category_id</string>
<string>3</string>
</entry>
<entry>
<string>default_sort_by</string>
<null/>
</entry>
<entry>
<string>custom_design_from</string>
<null/>
</entry>
<entry>
<string>updated_at</string>
<string>2010-12-24 11:37:41</string>
</entry>
<entry>
<string>meta_description</string>
<string>Jual baju gamis untuk muslim</string>
</entry>
<entry>
<string>custom_design_to</string>
<null/>
</entry>
<entry>
<string>path_in_store</string>
<null/>
</entry>
<entry>
<string>meta_title</string>
<string>Gamis</string>
</entry>
<entry>
<string>increment_id</string>
<null/>
</entry>
</map> Which one is better? I personally prefer JSON, but fortunately, you always have a choice. :-)
Thanks to the recently released 
Activiti Engine 
Activiti Explorer 
Activiti Probe 
Activiti Designer 
Activiti Cycle 
Activiti Modeler 
We're also very excited about the Manning book for which the early access program will start real soon. Watch out for Activiti in Action by Tijs Rademakers en Ron van Liempd. But all this just means that you can start using Activiti now and that we can get started on the 5.1 ;-) 