// ********************************************************************** // // Copyright (c) 2003-2007 ZeroC, Inc. All rights reserved. // // This copy of Ice is licensed to you under the terms described in the // ICE_LICENSE file included in this distribution. // // ********************************************************************** package IceGridGUI; import javax.swing.ImageIcon; import IceGrid.*; public class Utils { static public ImageIcon getIcon(String path) { java.net.URL imgURL = Utils.class.getResource(path); if(imgURL == null) { System.err.println("Could not find icon " + path); return null; } else { return new ImageIcon(imgURL); } } static public interface Stringifier { public String toString(Object obj); } // // Stringify helpers // static public String stringify(java.util.Collection col, Stringifier stringifier, String separator, Ice.StringHolder toolTipHolder) { String result = ""; if(toolTipHolder != null) { toolTipHolder.value = null; } java.util.Iterator p = col.iterator(); boolean firstElement = true; while(p.hasNext()) { String elt = stringifier.toString(p.next()); if(elt != null) { if(firstElement) { firstElement = false; if(toolTipHolder != null) { toolTipHolder.value = ""; } } else { result += separator; if(toolTipHolder != null) { toolTipHolder.value += "
"; } } if(elt.length() == 0) { result += "\"\""; } else if(elt.matches("\\S*")) { // // Only non-whitespace characters // result += elt; } else { result += '"' + elt + '"'; } if(toolTipHolder != null) { toolTipHolder.value += elt; } } } if(toolTipHolder != null && toolTipHolder.value != null) { toolTipHolder.value += ""; } return result; } static public String stringify(java.util.Collection col, String separator, Ice.StringHolder toolTipHolder) { Stringifier stringifier = new Stringifier() { public String toString(Object obj) { return (String)obj; } }; return stringify(col, stringifier, separator, toolTipHolder); } static public String stringify(String[] stringSeq, String separator, Ice.StringHolder toolTipHolder) { return stringify(java.util.Arrays.asList(stringSeq), separator, toolTipHolder); } static public String stringify(java.util.Map stringMap, final String pairSeparator, String separator, Ice.StringHolder toolTipHolder) { Stringifier stringifier = new Stringifier() { public String toString(Object obj) { java.util.Map.Entry entry = (java.util.Map.Entry)obj; return (String)entry.getKey() + pairSeparator + (String)entry.getValue(); } }; return stringify(stringMap.entrySet(), stringifier, separator, toolTipHolder); } static public class Resolver { // // Application-level resolver // public Resolver(java.util.Map variables) { this(new java.util.Map[]{variables}); } public Resolver(java.util.Map[] variables) { _variables = variables; _predefinedVariables = new java.util.HashMap(); _parameters = null; _subResolver = this; } // // Resolver for instance; in-parameters are not yet substituted // public Resolver(Resolver parent, java.util.Map parameters, java.util.Map defaults) { _variables = parent._variables; // // Whenever the parent's predefined variables change, the resolver // must be recreated // reset(parent, parameters, defaults); } // // Resolver for plain server or service // public Resolver(Resolver parent) { _variables = parent._variables; _predefinedVariables = new java.util.HashMap(parent._predefinedVariables); _parameters = parent._parameters; if(_parameters == null) { _subResolver = this; } else { _subResolver = new Resolver(_variables, _predefinedVariables); } } private Resolver(java.util.Map[] variables, java.util.Map predefinedVariables) { _variables = variables; _predefinedVariables = _predefinedVariables; _parameters = null; _subResolver = this; } public String find(String name) { if(_parameters != null) { Object obj = _parameters.get(name); if(obj != null) { return (String)obj; } } Object obj = _predefinedVariables.get(name); if(obj != null) { return (String)obj; } for(int i = 0; i < _variables.length; ++i) { obj = _variables[i].get(name); if(obj != null) { return _subResolver.substitute((String)obj); } } return null; } // // Set a pre-defined variable; returns true if value was updated // public boolean put(String name, String value) { String oldVal = (String)_predefinedVariables.get(name); if(oldVal == null || !oldVal.equals(value)) { _predefinedVariables.put(name, value); return true; } else { return false; } } // // Reset parameters and pre-defined variables // public void reset(Resolver parent, java.util.Map parameters, java.util.Map defaults) { assert _variables == parent._variables; _predefinedVariables = new java.util.HashMap(parent._predefinedVariables); _parameters = parent.substituteParameterValues(parameters, defaults); _subResolver = new Resolver(_variables, _predefinedVariables); } public void reset(Resolver parent) { assert _variables == parent._variables; _predefinedVariables = new java.util.HashMap(parent._predefinedVariables); assert _parameters == parent._parameters; if(_parameters == null) { _subResolver = this; } else { _subResolver = new Resolver(_variables, _predefinedVariables); } } // // The sorted substituted parameters // public java.util.Map getParameters() { return _parameters; } public String substitute(String input) { if(input == null) { return input; } int beg = 0; int end = 0; while((beg = input.indexOf("${", beg)) != -1) { if(beg > 0 && input.charAt(beg - 1) == '$') { int escape = beg - 1; while(escape > 0 && input.charAt(escape - 1) == '$') { --escape; } input = input.substring(0, escape) + input.substring(beg - (beg - escape) / 2); if((beg - escape) % 2 != 0) { ++beg; continue; } else { beg -= (beg - escape) / 2; } } end = input.indexOf('}', beg); if(end == -1) { // // Malformed variable, can't substitute anything else // return input; } String name = input.substring(beg + 2, end); // // Resolve name // String val = find(name); if(val != null) { input = input.substring(0, beg) + val + input.substring(end + 1); beg += val.length(); } else { // // No substitution, keep ${name} in the result // ++beg; } } return input; } // // Substitute all the values from the input map // public java.util.Map substituteParameterValues(java.util.Map input, java.util.Map defaults) { java.util.Map result = new java.util.HashMap(); java.util.Iterator p = input.entrySet().iterator(); while(p.hasNext()) { java.util.Map.Entry entry = (java.util.Map.Entry)p.next(); result.put(entry.getKey(), substitute((String)entry.getValue())); } p = defaults.entrySet().iterator(); while(p.hasNext()) { java.util.Map.Entry entry = (java.util.Map.Entry)p.next(); if(!result.containsKey(entry.getKey())) { result.put(entry.getKey(), substitute((String)entry.getValue())); } } return result; } private java.util.Map[] _variables; private java.util.Map _parameters; private java.util.Map _predefinedVariables; private Resolver _subResolver; } static public String substitute(String input, Resolver resolver) { if(resolver != null) { return resolver.substitute(input); } else { return input; } } // // An expanded property set (i.e. containing other property sets) // static public class ExpandedPropertySet { public ExpandedPropertySet[] references; public java.util.List properties; // list of PropertyDescriptor } static public java.util.SortedMap propertySetsToMap( java.util.List propertySets, Resolver resolver) { java.util.SortedMap toMap = new java.util.TreeMap(); java.util.Iterator p = propertySets.iterator(); while(p.hasNext()) { ExpandedPropertySet propertySet = (ExpandedPropertySet)p.next(); addSet(propertySet, resolver, toMap); } return toMap; } static public java.util.SortedMap propertySetToMap( ExpandedPropertySet propertySet, Resolver resolver) { java.util.List list = new java.util.LinkedList(); list.add(propertySet); return propertySetsToMap(list, resolver); } static private void addSet(ExpandedPropertySet set, Resolver resolver, java.util.SortedMap toMap) { for(int i = 0; i < set.references.length; ++i) { addSet(set.references[i], resolver, toMap); } java.util.Iterator p = set.properties.iterator(); while(p.hasNext()) { PropertyDescriptor pd = (PropertyDescriptor)p.next(); String name = (String)pd.name; String val = (String)pd.value; name = substitute(pd.name, resolver); val = substitute(pd.value, resolver); toMap.put(name, val); } } }