J'essaie d'accéder au site Web uniprot pour récupérer une liste de séquences de protéines avec leurs profils en tant que fichier XML. La taille du fichier est énorme. J'utilise l'éclipse qui vient avec le paquet complet de JBPM. En outre, j'utilise ubuntu sous la boîte virtuelle. Maintenant, quand je lance mon code, je reçois ce stacktrace:Besoin de résoudre ce: java.io.IOException: EAT prématuré
java.io.IOException: Premature EOF
at sun.net.www.http.ChunkedInputStream.fastRead(ChunkedInputStream.java:234)
at sun.net.www.http.ChunkedInputStream.read(ChunkedInputStream.java:662)
at java.io.FilterInputStream.read(FilterInputStream.java:116)
at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(HttpURLConnection.java:2512)
at edu.uga.uniprot.amna.QueryExecuter.ExecuteQuery(QueryExecuter.java:40)
at edu.uga.uniprot.amna.Uniprot.getProteenStringByDFamily(Uniprot.java:40)
at edu.uga.uniprot.amna.Uniprot.getProteensByDFamily(Uniprot.java:55)
at org.drools.bpmn2.Process_org_drools_bpmn2_Hello_World_0.action4(Process_org_drools_bpmn2_Hello_World_0.java:60)
at org.drools.bpmn2.Process_org_drools_bpmn2_Hello_World_0Action4Invoker.execute(Process_org_drools_bpmn2_Hello_World_0Action4Invoker.java:14)
at org.jbpm.workflow.instance.node.ActionNodeInstance.internalTrigger(ActionNodeInstance.java:47)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:185)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:150)
at org.jbpm.workflow.instance.node.StartNodeInstance.triggerCompleted(StartNodeInstance.java:49)
at org.jbpm.workflow.instance.node.StartNodeInstance.internalTrigger(StartNodeInstance.java:41)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)
at org.jbpm.ruleflow.instance.RuleFlowProcessInstance.internalStart(RuleFlowProcessInstance.java:35)
at org.jbpm.process.instance.impl.ProcessInstanceImpl.start(ProcessInstanceImpl.java:188)
at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.start(WorkflowProcessInstanceImpl.java:302)
at org.jbpm.process.instance.ProcessRuntimeImpl.startProcessInstance(ProcessRuntimeImpl.java:154)
at org.jbpm.process.instance.ProcessRuntimeImpl.startProcess(ProcessRuntimeImpl.java:124)
at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1095)
at org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:306)
at com.sample.ProcessTest.main(ProcessTest.java:49)
java.lang.RuntimeException: unable to execute Action
at org.jbpm.workflow.instance.node.ActionNodeInstance.internalTrigger(ActionNodeInstance.java:49)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:185)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:150)
at org.jbpm.workflow.instance.node.StartNodeInstance.triggerCompleted(StartNodeInstance.java:49)
at org.jbpm.workflow.instance.node.StartNodeInstance.internalTrigger(StartNodeInstance.java:41)
at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)
at org.jbpm.ruleflow.instance.RuleFlowProcessInstance.internalStart(RuleFlowProcessInstance.java:35)
at org.jbpm.process.instance.impl.ProcessInstanceImpl.start(ProcessInstanceImpl.java:188)
at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.start(WorkflowProcessInstanceImpl.java:302)
at org.jbpm.process.instance.ProcessRuntimeImpl.startProcessInstance(ProcessRuntimeImpl.java:154)
at org.jbpm.process.instance.ProcessRuntimeImpl.startProcess(ProcessRuntimeImpl.java:124)
at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1095)
at org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:306)
at com.sample.ProcessTest.main(ProcessTest.java:49)
Caused by: java.lang.NullPointerException
at java.io.StringReader.<init>(StringReader.java:33)
at edu.uga.uniprot.amna.Uniprot.loadProteenFromString(Uniprot.java:117)
at edu.uga.uniprot.amna.Uniprot.getProteensByDFamily(Uniprot.java:58)
at org.drools.bpmn2.Process_org_drools_bpmn2_Hello_World_0.action4(Process_org_drools_bpmn2_Hello_World_0.java:60)
at org.drools.bpmn2.Process_org_drools_bpmn2_Hello_World_0Action4Invoker.execute(Process_org_drools_bpmn2_Hello_World_0Action4Invoker.java:14)
at org.jbpm.workflow.instance.node.ActionNodeInstance.internalTrigger(ActionNodeInstance.java:47)
... 14 more
que peut aider comment résoudre cette erreur ou quelle cause de cela?
Voici le code qui génère l'erreur:
public static String ExecuteQuery(String queryURL, boolean writeFile) {
URL url;
try {
System.out.println("Strat getting Data");
String output = "";
int read;
RandomAccessFile file = null;
url = new URL(queryURL);
HttpURLConnection connection =
(HttpURLConnection) url.openConnection();
connection.setRequestProperty("Content-Type", "application/xml");
connection.connect();
//read the result from the server
if(writeFile == true) {
file = new RandomAccessFile(fileName, "rw");
}
InputStream stream = connection.getInputStream();
byte[] buffer = new byte[1024];
BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
while((read = stream.read(buffer, 0, 1024)) != -1) {
//System.out.println(new String(buffer));
output = output + new String(buffer).substring(0, read);
if(writeFile == true) {
file.write(buffer, 0, read);
}
buffer = new byte[1024];
}
System.out.println(output);
return output;
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
Que diriez-vous de certains des codes de Java ??? – Michael
Vous n'avez pas besoin d'allouer une nouvelle mémoire tampon à chaque fois autour de cette boucle, c'est-à-dire que la GC est vouée à la mort. Vous pourriez réécrire avec profit 'new String (buffer) .substring (0, read)' comme 'new String (buffer, 0, read)' aussi. – EJP