Package org.apache.jasper.servlet
Class JasperLoader
- java.lang.Object
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- java.lang.ClassLoader
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- java.security.SecureClassLoader
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- java.net.URLClassLoader
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- org.apache.jasper.servlet.JasperLoader
 
 
 
 
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- All Implemented Interfaces:
- java.io.Closeable,- java.lang.AutoCloseable
 
 public class JasperLoader extends java.net.URLClassLoaderClass loader for loading servlet class files (corresponding to JSP files) and tag handler class files (corresponding to tag files).- Author:
- Anil K. Vijendran, Harish Prabandham
 
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Constructor SummaryConstructors Constructor Description JasperLoader(java.net.URL[] urls, java.lang.ClassLoader parent, java.security.PermissionCollection permissionCollection)
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Method SummaryAll Methods Instance Methods Concrete Methods Modifier and Type Method Description java.security.PermissionCollectiongetPermissions(java.security.CodeSource codeSource)Get the Permissions for a CodeSource.java.io.InputStreamgetResourceAsStream(java.lang.String name)Delegate to parentjava.lang.Class<?>loadClass(java.lang.String name)Load the class with the specified name.java.lang.Class<?>loadClass(java.lang.String name, boolean resolve)Load the class with the specified name, searching using the following algorithm until it finds and returns the class.- 
Methods inherited from class java.net.URLClassLoaderaddURL, close, definePackage, findClass, findResource, findResources, getURLs, newInstance, newInstance
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Methods inherited from class java.lang.ClassLoaderclearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findClass, findLibrary, findLoadedClass, findResource, findSystemClass, getClassLoadingLock, getDefinedPackage, getDefinedPackages, getName, getPackage, getPackages, getParent, getPlatformClassLoader, getResource, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, getUnnamedModule, isRegisteredAsParallelCapable, registerAsParallelCapable, resolveClass, resources, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners
 
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Method Detail- 
loadClasspublic java.lang.Class<?> loadClass(java.lang.String name) throws java.lang.ClassNotFoundExceptionLoad the class with the specified name. This method searches for classes in the same manner asloadClass(String, boolean)withfalseas the second argument.- Overrides:
- loadClassin class- java.lang.ClassLoader
- Parameters:
- name- Name of the class to be loaded
- Throws:
- java.lang.ClassNotFoundException- if the class was not found
 
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loadClasspublic java.lang.Class<?> loadClass(java.lang.String name, boolean resolve) throws java.lang.ClassNotFoundExceptionLoad the class with the specified name, searching using the following algorithm until it finds and returns the class. If the class cannot be found, returnsClassNotFoundException.- Call findLoadedClass(String)to check if the class has already been loaded. If it has, the sameClassobject is returned.
- If the delegateproperty is set totrue, call theloadClass()method of the parent class loader, if any.
- Call findClass()to find this class in our locally defined repositories.
- Call the loadClass()method of our parent class loader, if any.
 resolveflag istrue, this method will then callresolveClass(Class)on the resulting Class object.- Overrides:
- loadClassin class- java.lang.ClassLoader
- Parameters:
- name- Name of the class to be loaded
- resolve- If- truethen resolve the class
- Throws:
- java.lang.ClassNotFoundException- if the class was not found
 
- Call 
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getResourceAsStreampublic java.io.InputStream getResourceAsStream(java.lang.String name) Delegate to parent- Overrides:
- getResourceAsStreamin class- java.net.URLClassLoader
- See Also:
- ClassLoader.getResourceAsStream(java.lang.String)
 
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getPermissionspublic final java.security.PermissionCollection getPermissions(java.security.CodeSource codeSource) Get the Permissions for a CodeSource. Since this ClassLoader is only used for a JSP page in a web application context, we just return our preset PermissionCollection for the web app context.- Overrides:
- getPermissionsin class- java.net.URLClassLoader
- Parameters:
- codeSource- Code source where the code was loaded from
- Returns:
- PermissionCollection for CodeSource
 
 
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