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/*******************************************************************************
* Copyright (c) 2004, 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.make.internal.core.scannerconfig.util;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
/**
* Represents a symbol definition with possible multiple values
* example:
* LOG_LEVEL
* LOG_LEVEL = 2
* LOG_LEVEL = LOG_BASE + 1
* @author vhirsl
*/
public class SymbolEntry {
private static final String UNSPECIFIED_VALUE = "1"; //$NON-NLS-1$
private String name;
private Map values; // Values can be either in the active (selected) group or in the removed group
// public SymbolEntry(String name) {
// this.name = name;
// }
public SymbolEntry(String name, String value) {
this(name, value, true);
}
public SymbolEntry(String name, String value, boolean active) {
this.name = name;
if (values == null) {
values = new LinkedHashMap(1);
}
values.put(value, Boolean.valueOf(active));
}
public SymbolEntry(SymbolEntry se) {
name = se.name;
// deep copy
values = new LinkedHashMap(se.values.size());
for (Iterator i = se.values.keySet().iterator(); i.hasNext(); ) {
String key = (String) i.next();
Boolean value = (Boolean) se.values.get(key);
values.put(key, Boolean.valueOf(value.booleanValue()));
}
}
public boolean add(String value) {
return add(value, true);
}
public boolean add(String value, boolean active) {
boolean rc = false;
if (!values.containsKey(value)) {
values.put(value, Boolean.valueOf(active));
rc = true;
}
return rc;
}
public void replace(String value, boolean active) {
values.put(value, Boolean.valueOf(active));
}
// private void addAll(SymbolEntry se) {
// values.putAll(se.values);
// }
public void remove(String value) {
values.remove(value);
}
public void removeAll() {
values = null;
}
public List getActive() {
return get(true, true, true);
}
public List getActiveRaw() {
return get(false, true, true);
}
public List getRemoved() {
return get(true, true, false);
}
public List getRemovedRaw() {
return get(false, true, false);
}
public List getAll() {
return get(true, false, true /*don't care*/);
}
public List getAllRaw() {
return get(false, false, true /*don't care*/);
}
/**
* Utility function to retrieve values as a set.
*
* @param format - false = raw
* @param subset - false = all
* @param active - false = removed
* @return List
*/
private List get(boolean format, boolean subset, boolean active) {
List rv = new ArrayList(values.size());
for (Iterator i = values.keySet().iterator(); i.hasNext(); ) {
String val = (String) i.next();
if (subset && ((Boolean) values.get(val)).booleanValue() != active)
continue;
if (format) {
rv.add(name + "=" + (val == null ? UNSPECIFIED_VALUE : val));//$NON-NLS-1$
}
else {
rv.add(name + (val == null ? "" : "=" + val));//$NON-NLS-1$ //$NON-NLS-2$
}
}
return rv;
}
/**
* Returns only value part of all active entries
* @return List
*/
public List getValuesOnly(boolean active) {
List rv = new ArrayList(values.size());
for (Iterator i = values.keySet().iterator(); i.hasNext(); ) {
String val = (String) i.next();
if (((Boolean) values.get(val)).booleanValue() == active) {
rv.add(val == null ? UNSPECIFIED_VALUE : val);
}
}
return rv;
}
public int numberOfValues() {
return values.size();
}
public String toString() {
StringBuffer buffer = new StringBuffer(name);
buffer.append(':');
for (Iterator i = values.keySet().iterator(); i.hasNext(); ) {
String val = (String) i.next();
buffer.append('\t');
buffer.append((val == null) ? "null" : val);//$NON-NLS-1$
if (((Boolean) values.get(val)).booleanValue() == true) {
buffer.append("(active)");//$NON-NLS-1$
}
buffer.append('\n');
}
return buffer.toString();
}
}
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