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Add API to add an InputStream for a jar to an AnalysisScope (#330) 

This is useful, e.g., if you have the bytes of a jar file in memory and want to load it into an `AnalysisScope`.
This commit is contained in:
Manu Sridharan 2018-07-19 17:01:51 +02:00 committed by GitHub
parent aeb17dfca4
commit a78af3f67e
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3 changed files with 59 additions and 1 deletions
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42
com.ibm.wala.core.tests/src/com/ibm/wala/core/tests/cha/AnalysisScopeTest.java Normal file
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@ -0,0 +1,42 @@
package com.ibm.wala.core.tests.cha;
import com.ibm.wala.core.tests.util.TestConstants;
import com.ibm.wala.ipa.callgraph.AnalysisScope;
import com.ibm.wala.ipa.cha.ClassHierarchy;
import com.ibm.wala.ipa.cha.ClassHierarchyException;
import com.ibm.wala.ipa.cha.ClassHierarchyFactory;
import com.ibm.wala.types.ClassLoaderReference;
import com.ibm.wala.types.TypeReference;
import com.ibm.wala.util.config.AnalysisScopeReader;
import com.ibm.wala.util.io.FileProvider;
import org.junit.Assert;
import org.junit.Test;
import java.io.FileInputStream;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
public class AnalysisScopeTest {
@Test
public void testJarInputStream() throws IOException, ClassHierarchyException {
AnalysisScope scope = AnalysisScopeReader.readJavaScope(TestConstants.WALA_TESTDATA,
(new FileProvider()).getFile("J2SEClassHierarchyExclusions.txt"),
AnalysisScopeTest.class.getClassLoader());
// assumes com.ibm.wala.core.tests is the current working directory
Path bcelJarPath = Paths.get(
System.getProperty("user.dir"),
"..",
"com.ibm.wala.core.testdata",
"bcel-5.2.jar"
);
scope.addInputStreamForJarToScope(ClassLoaderReference.Application, new FileInputStream
(bcelJarPath.toString()));
ClassHierarchy cha = ClassHierarchyFactory.make(scope);
Assert.assertNotNull("couldn't find expected class", cha.lookupClass(
TypeReference.findOrCreate(ClassLoaderReference.Application,
"Lorg/apache/bcel/verifier/Verifier")));
}
}

3
com.ibm.wala.core.tests/src/com/ibm/wala/core/tests/cha/MissingSuperTest.java
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@ -43,7 +43,8 @@ public class MissingSuperTest extends WalaTestCase {
@Test
public void testMissingSuper() throws IOException, ClassHierarchyException {
AnalysisScope scope = AnalysisScopeReader.readJavaScope(TestConstants.WALA_TESTDATA,
(new FileProvider()).getFile("J2SEClassHierarchyExclusions.txt"), DupFieldsTest.class.getClassLoader());
(new FileProvider()).getFile("J2SEClassHierarchyExclusions.txt"),
MissingSuperTest.class.getClassLoader());
TypeReference ref = TypeReference.findOrCreate(ClassLoaderReference.Application,
"Lmissingsuper/MissingSuper");
// without phantom classes, won't be able to resolve

15
com.ibm.wala.core/src/com/ibm/wala/ipa/callgraph/AnalysisScope.java
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@ -11,6 +11,8 @@
package com.ibm.wala.ipa.callgraph;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.NotSerializableException;
import java.util.ArrayList;
import java.util.Collection;
@ -29,6 +31,7 @@ import com.ibm.wala.classLoader.BinaryDirectoryTreeModule;
import com.ibm.wala.classLoader.ClassFileModule;
import com.ibm.wala.classLoader.IClassLoader;
import com.ibm.wala.classLoader.JarFileModule;
import com.ibm.wala.classLoader.JarStreamModule;
import com.ibm.wala.classLoader.Language;
import com.ibm.wala.classLoader.Module;
import com.ibm.wala.classLoader.SourceDirectoryTreeModule;
@ -211,6 +214,18 @@ public class AnalysisScope {
s.add(new ClassFileModule(file, null));
}
/**
* Add a jar file to the scope via an {@link InputStream}. NOTE: The InputStream should *not*
* be a {@link java.util.jar.JarInputStream}; it should be a regular {@link InputStream} for
* the raw bytes of the jar file.
*
*/
public void addInputStreamForJarToScope(ClassLoaderReference loader, InputStream stream) throws
IOException {
MapUtil.findOrCreateList(moduleMap, loader).add(new JarStreamModule(stream));
}
/**
* Add a jar file to the scope for a loader
*/