Thanks Marshall,
I attach the stack trace and java code below.
<exception>
Exception in thread "main" java.lang.NullPointerException
at org.apache.uima.cas.impl.CASImpl.ll_getFSForRef(CASImpl.java:2745)
at
jp.ac.keio.dmc.context.srw.types.PersonWikip.getCompany_related(PersonWikip.java:233)
at
jp.ac.keio.dmc.context.srw.SRWikipediaMain.extractNeeFromText(SRWikipediaMain.java:120)
at
jp.ac.keio.dmc.context.srw.SRWikipediaMain.extractNeeFromWebdoc(SRWikipediaMain.java:85)
at
jp.ac.keio.dmc.context.srw.SRWikipediaMain.extractNamedentity(SRWikipediaMain.java:67)
at
jp.ac.keio.dmc.context.srw.SRWikipediaMain.<init>(SRWikipediaMain.java:47)
at
jp.ac.keio.dmc.context.srw.SRWikipediaMain.main(SRWikipediaMain.java:210)
</exception>
- PersonWikip.java
I don't attach because it is nothing special that is generated
automatically after defining Type System Definition on Component
descriptor editor.
- whole code of SRWikipediaMain.java
# You might feel the code verbose because I paste the whole...
<SRWikipediaMain.java>
1: package jp.ac.keio.dmc.context.srw;
2:
3: import java.io.IOException;
4: import java.util.LinkedList;
5:
6: import jp.ac.keio.dmc.context.srw.types.PersonWikip;
7: import jp.ac.keio.dmc.context.util.http.DMCHttpClient;
8: import net.lateeye.util.uima.AnalysisEngineUtil;
9:
10: import org.apache.uima.analysis_engine.AnalysisEngine;
11: import org.apache.uima.cas.FSIndex;
12: import org.apache.uima.cas.FSIterator;
13: import org.apache.uima.jcas.JCas;
14: import org.apache.uima.jcas.cas.StringArray;
15: import org.apache.uima.util.XMLInputSource;
16:
17: import com.ibm.omnifind.ne.types.Company;
18: import com.ibm.omnifind.ne.types.Org;
19:
20: public class SRWikipediaMain {
21: private static String path_eclipseWorkspace_root =
"C:/data/app/workspace_eclipse/";
22: private static String path_ibmNeeDesc = path_eclipseWorkspace_root
23: + "tae_nee_apacheUima/" + "desc/";
24: private static String path_srwAeDesc = path_eclipseWorkspace_root
25: + "srwikipedia/" + "descriptor/";
26: private static String uimaDesc_personWikip = path_srwAeDesc
27: + "KeioWikipAnnotatorDescriptor.xml";
28: private static String uimaDesc_ibmNee = path_ibmNeeDesc
29: + "NamedEntityAnnotatorDescriptor.xml";
30: private static String uimaDesc_wikipPersonNee = path_srwAeDesc
31: + "WikipPersonNeeAnnotatorDescriptor.xml";
32: // private LinkedList<PersonWikip> personList = null;
33: private DMCHttpClient dhc = new DMCHttpClient();
34:
35: public SRWikipediaMain() {
36: // extract keio person from wikipedia
37: LinkedList<PersonWikip> personList =
this.extractKeioPersonWikipedia();
38:
39: // extract NEs using personList
40: personList = this.extractNamedentity(personList);
41:
42: // update 2 RDB
43: this.update_SRW_db(personList);
44: }
45:
46: private void update_SRW_db(LinkedList<PersonWikip> persons) {
47: // TODO Auto-generated method stub
48: }
49:
50: private LinkedList<PersonWikip> extractNamedentity(
51: LinkedList<PersonWikip> persons) {
52:
53: LinkedList<PersonWikip> newList = new LinkedList<PersonWikip>();
54: for (int i = 0; i < persons.size(); i++) {
55: PersonWikip person = persons.get(i);
56:
57: System.out.println("SRWikipediaMain:extractNE: "
58: + person.getPersonname().getLex());
59:
60: person = this.extractNeeFromWebdoc(person,
person.getUrl_wikip());
61:
62: // 2007nov19/130s/for saving memory
63: // newList.add(person);
64: person = null;
65: }
66: return newList;
67: }
68:
69: private PersonWikip extractNeeFromWebdoc(PersonWikip person, String
uri) {
70:
71: String htmlBody = null;
72: try {
73: htmlBody = this.dhc.doGetBody(uri);
74: } catch (IllegalArgumentException e) {
75: // occur when the person name is not enclosed by <a>
tag.
76: }
77:
78: return this.extractNeeFromText(person, htmlBody);
79: }
80:
81: private PersonWikip extractNeeFromText(PersonWikip person, String
htmlBody) {
82: if (htmlBody != null) {
83: // read component descriptor for IBM NEE
84: XMLInputSource in = null;
85: try {
86: in = new
XMLInputSource(SRWikipediaMain.uimaDesc_ibmNee);
87: } catch (IOException e) {
88: e.printStackTrace();
89: }
90:
91: // give html to analysis engine
92: AnalysisEngine ae =
AnalysisEngineUtil.getAeInstance(in);
93: JCas jcas = AnalysisEngineUtil
94: .analyzeByAnalysisEngine(ae, htmlBody);
95:
96: // set firm
97: System.out.print(" - firm: ");
98:
99: FSIndex index =
jcas.getJFSIndexRepository().getAnnotationIndex(
100: Company.type);
101: FSIterator compIter = index.iterator();
102:
103: StringArray compArray = new StringArray(jcas,
index.size());
104: int num_company = 0;
105: while (compIter.hasNext()) {
106: Company annot = (Company) compIter.next();
107: compArray.set(num_company, annot.getLex());
108: // TODO remove redundunt values
109:
110: num_company++;
111: }
112: person.setCompany_related(compArray);
113: System.out.print(person.getCompany_related().toArray()
+ " ");
114:
115: // set org
116: System.out.println("");
117: System.out.print(" - org: ");
118:
119: FSIterator orgIter = jcas.getJFSIndexRepository()
120:
.getAnnotationIndex(Org.type).iterator();
121: StringArray orgArray = new StringArray(jcas, 100);
122: int order_org = 0;
123: while (orgIter.hasNext()) {
124: Org annot = (Org) orgIter.next();
125: orgArray.set(order_org, annot.getLex());
126:
127: order_org++;
128: }
129: person.setCompany_related(orgArray);
130: System.out.print(person.getOrg_related().toArray() + "
");
131:
132: // read component descriptor for WikipPerson NEE
133: in = null;
134: jcas = null;
135: try {
136: in = new
XMLInputSource(SRWikipediaMain.uimaDesc_wikipPersonNee);
137: } catch (IOException e) {
138: e.printStackTrace();
139: }
140: // give html to analysis engine
141: jcas = AnalysisEngineUtil.analyzeByAnalysisEngine(
142: AnalysisEngineUtil.getAeInstance(in),
htmlBody);
143:
144: // set faculty
145: // set schoold graduated
146: // set pref. candidate from
147: System.out.println("");
148: }
149:
150: // TODO write 2 data base
151:
152: return person;
153: }
154:
155: private String url_keiopersons_wikipedia =
"http://ja.wikipedia.org/wiki/%E6%85%B6%E6%87%89%E7%BE%A9%E5%A1%BE%E5%A4%A7%E5%AD%A6%E3%81%AE%E4%BA%BA%E7%89%A9%E4%B8%80%E8%A6%A7";;
156:
157: private LinkedList<PersonWikip> extractKeioPersonWikipedia() {
158:
159: XMLInputSource in = null;
160: try {
161: in = new
XMLInputSource(SRWikipediaMain.uimaDesc_personWikip);
162: } catch (IOException e) {
163: e.printStackTrace();
164: }
165: // create a JCas, given an Analysis Engine (ae)
166: AnalysisEngine ae = AnalysisEngineUtil.getAeInstance(in);
167: String docBody =
this.dhc.doGetBody(this.url_keiopersons_wikipedia);
168: JCas jcas = AnalysisEngineUtil.analyzeByAnalysisEngine(ae,
docBody);
169:
170: LinkedList<PersonWikip> personList =
this.createPersonList(jcas);
171: System.out.println("extractKeioPersonWikipedia: " +
personList.size());
172:
173: // 2007nov15/130s/this caused fatal error!!!
174: // jcas.reset();
175:
176: return personList;
177: }
178:
179: private LinkedList<PersonWikip> createPersonList(JCas jcas) {
180: LinkedList<PersonWikip> persons = new LinkedList<PersonWikip>();
181:
182: FSIterator personIter = jcas.getJFSIndexRepository()
183:
.getAnnotationIndex(PersonWikip.type).iterator();
184: int counter = 0;
185: while (personIter.hasNext()) {
186: PersonWikip p = (PersonWikip) personIter.next();
187: persons.add(p);
188: System.out
189:
.println("SRWikipediaMain:createPersonList: "
190: +
p.getPersonname().getLex() + ", URL: "
191: + p.getUrl_wikip());
192: counter++;
193: }
194: return persons;
195: }
196:
197: public static void main(String[] args) {
198: new SRWikipediaMain();
199: }
200: }
</SRWikipediaMain.java>
Isaac
On 11/20/07, Marshall Schor <[EMAIL PROTECTED]> wrote:
> Can you please post the stack trace so we can see the nesting of method
> calls leading to the null pointer exception?
>
> Thanks. -Marshall
>
> ISAO Isaac Saito wrote:
> > Thilo,
> >
> > Thank you for the comment.
> > I took following steps but the result is the same.
> >
> > 1. set /uimaj-2.2.0-incubating-bin/apache-uima/lib as a classpath
> > 2. clean compiled classes and build
> >
> > any comments will be appreciated.
> >
> > Isaac
> >
> > On 11/20/07, Thilo Goetz <[EMAIL PROTECTED]> wrote:
> >
> >> Hi,
> >>
> >> this looks like you may be referring to an old version
> >> of your JCas classes in your classpath. The invocation
> >> exception may be caused because the old version of the
> >> Person class doesn't have the company feature yet. Please
> >> check your classpath and make sure the classes you run
> >> with are the same ones you compile against.
> >>
> >> --Thilo
> >>
> >> ISAO Isaac Saito wrote:
> >>
> >>> Hi all,
> >>>
> >>> Could anybody has a solution to the problem I describe below?
> >>>
> >>> Thanks in adv,
> >>> Isaac
> >>>
> >>>
> >>> - What I Want:
> >>> set an array of String as a feature and get them
> >>>
> >>>
> >>> - Phenomenon:
> >>>
> >>> -- Exception occurs and application terminates after executing
> >>> System.out.print(person.getCompany_related().toArray())
> >>>
> >>> Exception in thread "main" java.lang.NullPointerException
> >>> at
> >>> org.apache.uima.cas.impl.CASImpl.ll_getFSForRef(CASImpl.java:2745)
> >>>
> >>>
> >>> -- the content of variable shows "com.sun.jdi.InvocationException
> >>> occurred invoking method." after executing
> >>> person.setCompany_related(compArray).
> >>> This can be seen by using eclipse' debug mode.
> >>>
> >>>
> >>> - java code
> >>>
> >>> private void extractNeeFromText(String descpath, String htmlBody,
> >>> Annotation person) {
> >>> XMLInputSource in = null;
> >>> try {
> >>> in = new XMLInputSource(descpath);
> >>> } catch (IOException e) {
> >>> e.printStackTrace();
> >>> }
> >>> AnalysisEngine ae = AnalysisEngineUtil.getAeInstance(in);
> >>> ResourceSpecifier specifier = null;
> >>> AnalysisEngine ae = null;
> >>> try {
> >>> specifier =
> >>> UIMAFramework.getXMLParser().parseResourceSpecifier(
> >>> desc);
> >>> ae = UIMAFramework.produceAnalysisEngine(specifier);
> >>> } catch (InvalidXMLException e) {
> >>> e.printStackTrace();
> >>> } catch (ResourceInitializationException e) {
> >>> e.printStackTrace();
> >>> }
> >>> JCas jcas = AnalysisEngineUtil.analyzeByAnalysisEngine(ae,
> >>> htmlBody);
> >>> FSIndex index = jcas.getJFSIndexRepository().getAnnotationIndex(
> >>> Company.type);
> >>> StringArray compArray = new StringArray(jcas, index.size());
> >>> FSIterator compIter = index.iterator();
> >>> int num_company = 0;
> >>> while (compIter.hasNext()) {
> >>> Company annot = (Company) compIter.next();
> >>> compArray.set(num_company, annot.getLex());
> >>> // TODO remove redundunt values
> >>> num_company++;
> >>> }
> >>> person.setCompany_related(compArray);
> >>> System.out.println(person.getCompany_related().toArray());
> >>> }
> >>>
> >>>
> >>> - type system desctiption
> >>>
> >>> <?xml version="1.0" encoding="UTF-8"?>
> >>> <typeSystemDescription xmlns="http://uima.apache.org/resourceSpecifier";>
> >>> <name>Person-Wikip_TypeSystemDescriptor</name>
> >>> <description></description>
> >>> <version>1.0</version>
> >>> <vendor>ISAAC</vendor>
> >>> <imports>
> >>> <import
> >>> location="../../tae_nee_apacheUima/desc/NamedEntityTypeSystemDescriptor.xml"/>
> >>> </imports>
> >>> <types>
> >>> <typeDescription>
> >>> <name>jp.ac.keio.dmc.context.srw.types.PersonWikip</name>
> >>> <description>w</description>
> >>> <supertypeName>uima.tcas.Annotation</supertypeName>
> >>> <features>
> >>> <featureDescription>
> >>> <name>company_related</name>
> >>> <description></description>
> >>> <rangeTypeName>uima.cas.StringArray</rangeTypeName>
> >>> </featureDescription>
> >>> </features>
> >>> </typeDescription>
> >>> </types>
> >>> </typeSystemDescription>
> >>>
> >>>
> >>> - Referred conversation
> >>> http://www.ibm.com/developerworks/forums/thread.jspa?threadID=129534
> >>>
> >
> >
> >
