granteditor.java

aglet的部分源码

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 GrantEditor extends EditorPanel implements Editor {
	private static final String LABEL_CODEBASE = "CodeBase";
	private static final int LENGTH_CODEBASE = 15;
	private static final String LABEL_SIGNEDBY = "Signed by";
	private static final int LENGTH_SIGNEDBY = 5;
	private static final String LABEL_OWNEDBY = "Owned by";
	private static final int LENGTH_OWNEDBY = 5;

	private TextField codeBase = new TextField(LENGTH_CODEBASE);
	private TextField signedBy = new TextField(LENGTH_SIGNEDBY);
	private TextField ownedBy = new TextField(LENGTH_OWNEDBY);

	GrantEditor() {
		GridBagLayout grid = new GridBagLayout();

		setLayout(grid);

		GridBagConstraints cns = new GridBagConstraints();

		cns.weighty = 0.0;
		cns.fill = GridBagConstraints.HORIZONTAL;
		cns.ipadx = cns.ipady = 5;

		Label label = null;

		// code base
		label = new Label(LABEL_CODEBASE);
		add(label);
		cns.weightx = 0.2;
		grid.setConstraints(label, cns);

		add(codeBase);
		cns.weightx = 1.0;
		cns.gridwidth = GridBagConstraints.REMAINDER;
		grid.setConstraints(codeBase, cns);

		// signed by
		label = new Label(LABEL_SIGNEDBY);
		add(label);
		cns.weightx = 0.2;
		cns.gridwidth = GridBagConstraints.RELATIVE;
		grid.setConstraints(label, cns);

		add(signedBy);
		cns.weightx = 1.0;
		cns.gridwidth = GridBagConstraints.REMAINDER;
		grid.setConstraints(signedBy, cns);

		// owned by
		label = new Label(LABEL_OWNEDBY);
		add(label);
		cns.weightx = 0.2;
		cns.gridwidth = GridBagConstraints.RELATIVE;
		grid.setConstraints(label, cns);

		add(ownedBy);
		cns.weightx = 1.0;
		cns.gridwidth = GridBagConstraints.REMAINDER;
		grid.setConstraints(ownedBy, cns);
	}
	public String getText() {
		Vector args = new Vector();
		final String codebase = codeBase.getText();
		final String signers = signedBy.getText();
		final String owners = ownedBy.getText();
		final boolean cb = codebase != null &&!codebase.equals("");
		final boolean s = signers != null &&!signers.equals("");
		final boolean o = owners != null &&!owners.equals("");

		if (cb || s || o) {
			args.addElement(codebase);
		} 
		if (s || o) {
			args.addElement(signers);
		} 
		if (o) {
			args.addElement(owners);
		} 
		return toText(args);
	}
	public void setText(String text) {
		parseText(text);
		final String codebase = getArg(0);
		final String signers = getArg(1);
		final String owners = getArg(2);

		if (codebase != null) {
			codeBase.setText(codebase);
		} else {
			codeBase.setText("");
		} 
		if (signers != null) {
			signedBy.setText(signers);
		} else {
			signedBy.setText("");
		} 
		if (owners != null) {
			ownedBy.setText(owners);
		} else {
			ownedBy.setText("");
		} 
	}
	public static final PolicyGrant toGrant(String text) {
		Vector args = toVector(text);
		final int n = args.size();
		PolicyGrant grant = new PolicyGrant();

		for (int i = 0; i < n; i++) {
			final String str = (String)args.elementAt(i);

			switch (i) {
			case 0:
				try {
					grant.setCodeBase(str);
				} catch (MalformedURIPatternException excpt) {
					return null;
				} 
				break;
			case 1:
				if (str != null &&!str.equals("")) {
					grant.setSignerNames(str);
				} 
				break;
			case 2:
				if (str != null &&!str.equals("")) {
					grant.setOwnerNames(str);
				} 
				break;
			}
		} 
		return grant;
	}
}