?? permissionpanel.java
?? aglet的部分源碼
?? JAVA
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??
package com.ibm.aglets.tahiti;/* * @(#)SecurityConfigDialog.java * * IBM Confidential-Restricted * * OCO Source Materials * * 03L7246 (c) Copyright IBM Corp. 1996, 1998 * * The source code for this program is not published or otherwise * divested of its trade secrets, irrespective of what has been * deposited with the U.S. Copyright Office. */import java.awt.Button;import java.awt.Checkbox;import java.awt.Dialog;import java.awt.Event;import java.awt.Font;import java.awt.Choice;import java.awt.Frame;import java.awt.CardLayout;import java.awt.GridBagLayout;import java.awt.GridBagConstraints;import java.awt.Insets;import java.awt.Label;import java.awt.List;import java.awt.Panel;import java.awt.TextField;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.ItemEvent;import java.awt.event.ItemListener;import java.util.Vector;import java.util.Hashtable;import java.util.Enumeration;import java.util.StringTokenizer;import java.io.File;import java.io.IOException;import java.security.Policy;import com.ibm.aglets.security.PolicyDB;import com.ibm.aglets.security.PolicyFileReader;import com.ibm.aglets.security.PolicyFileWriter;import com.ibm.aglets.security.PolicyGrant;import com.ibm.aglets.security.PolicyPermission;import com.ibm.aglets.security.PolicyFileParsingException;import com.ibm.awb.misc.URIPattern;import com.ibm.awb.misc.MalformedURIPatternException;import com.ibm.awb.misc.Resource;class PermissionPanel extends EditorPanel { protected static final String LABEL_ACTIONS = "Actions"; private static final int LENGTH_ACTIONS = 15; protected TextField actions = new TextField(LENGTH_ACTIONS); public static final PolicyPermission toPermission(String className, String text) { PolicyPermission permission = null; try { permission = new PolicyPermission(className); } catch (ClassNotFoundException excpt) { return null; } if (permission != null) { Vector args = toVector(text); final int num = args.size(); int idx = 0; for (idx = 0; idx < num; idx++) { final String str = (String)args.elementAt(idx); switch (idx) { case 0: if (str != null &&!str.equals("")) { permission.setTargetName(str); } break; case 1: if (str != null &&!str.equals("")) { permission.setActions(str); } break; } } try { permission.create(); } catch (PolicyFileParsingException excpt) { return null; } catch (SecurityException excpt) { return null; } } return permission; }}
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