svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.lib / org.gvsig.expressionevaluator.lib.impl / src / main / java / org / gvsig / expressionevaluator / impl / symboltable / BookmarksSymbolTable.java @ 46831
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1 | 45703 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright (C) 2007-2013 gvSIG Association.
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5 | *
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6 | * This program is free software; you can redistribute it and/or modify it under
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7 | * the terms of the GNU General Public License as published by the Free Software
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8 | * Foundation; either version 3 of the License, or (at your option) any later
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9 | * version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful, but WITHOUT
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12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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13 | * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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14 | * details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License along with
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17 | * this program; if not, write to the Free Software Foundation, Inc., 51
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18 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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19 | *
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20 | * For any additional information, do not hesitate to contact us at info AT
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21 | * gvsig.com, or visit our website www.gvsig.com.
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22 | */
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23 | package org.gvsig.expressionevaluator.impl.symboltable; |
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24 | |||
25 | import java.util.AbstractMap; |
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26 | import java.util.AbstractSet; |
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27 | import java.util.ArrayList; |
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28 | import java.util.Collections; |
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29 | import java.util.Iterator; |
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30 | import java.util.List; |
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31 | import java.util.Map; |
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32 | import java.util.Set; |
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33 | import org.apache.commons.lang3.StringUtils; |
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34 | import org.gvsig.expressionevaluator.Code; |
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35 | import org.gvsig.expressionevaluator.Expression; |
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36 | import org.gvsig.expressionevaluator.ExpressionEvaluatorLocator; |
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37 | import org.gvsig.expressionevaluator.Function; |
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38 | import org.gvsig.expressionevaluator.SymbolTable; |
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39 | import org.gvsig.expressionevaluator.impl.function.programming.CreateFnFunction; |
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40 | 45719 | fdiaz | import org.gvsig.expressionevaluator.impl.function.programming.VarFunction; |
41 | 45703 | jjdelcerro | import org.gvsig.expressionevaluator.spi.AbstractSymbolTable; |
42 | import org.gvsig.tools.bookmarksandhistory.Bookmark; |
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43 | import org.gvsig.tools.bookmarksandhistory.Bookmarks; |
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44 | import org.gvsig.tools.exception.BaseException; |
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45 | |||
46 | /**
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47 | *
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48 | * @author gvSIG Team
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49 | */
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50 | public class BookmarksSymbolTable |
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51 | extends AbstractSymbolTable
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52 | implements SymbolTable {
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53 | static final String NAME = "Bookmarks"; |
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54 | |||
55 | private static class BookmarksFunctionsEntrySet |
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56 | extends AbstractSet<Map.Entry<String, Function>> |
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57 | implements Set<Map.Entry<String, Function>> { |
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58 | |||
59 | @Override
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60 | public int size() { |
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61 | Bookmarks<Expression> bookmarks = ExpressionEvaluatorLocator.getExpressionEvaluatorManager().getBookmarks();
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62 | int count = 0; |
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63 | for (Bookmark<Expression> bookmark : bookmarks) { |
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64 | if (StringUtils.startsWith(bookmark.getName(), "$")) { |
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65 | count++; |
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66 | } |
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67 | } |
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68 | return count;
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69 | } |
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70 | |||
71 | @Override
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72 | public Iterator<Map.Entry<String, Function>> iterator() { |
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73 | final Bookmarks<Expression> bookmarks = ExpressionEvaluatorLocator.getExpressionEvaluatorManager().getBookmarks(); |
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74 | Iterator<Map.Entry<String, Function>> it = new Iterator<Map.Entry<String, Function>>() { |
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75 | private final Iterator<Bookmark<Expression>> bookmarksIt = bookmarks.iterator(); |
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76 | private Bookmark<Expression> current = null; |
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77 | |||
78 | @Override
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79 | public boolean hasNext() { |
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80 | while (bookmarksIt.hasNext()) {
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81 | this.current = this.bookmarksIt.next(); |
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82 | if (StringUtils.startsWith(this.current.getName(), "$")) { |
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83 | return true; |
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84 | } |
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85 | } |
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86 | return false; |
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87 | } |
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88 | |||
89 | @Override
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90 | public Map.Entry<String, Function> next() { |
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91 | if (this.current == null) { |
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92 | return null; |
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93 | } |
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94 | Code code = this.current.getValue().getCode();
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95 | List<String> argNames = new ArrayList<>(); |
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96 | try {
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97 | code.accept((Object o) -> {
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98 | 45719 | fdiaz | if (((Code) o).code() == Code.CALLABLE) {
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99 | Code.Callable c = (Code.Callable) o; |
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100 | if(StringUtils.equalsIgnoreCase(c.name(), VarFunction.NAME)){
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101 | argNames.add(((Code.Identifier) c.parameters().get(0)).name());
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102 | } |
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103 | 45703 | jjdelcerro | } |
104 | }); |
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105 | } catch (BaseException ex) {
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106 | } |
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107 | Function function = new CreateFnFunction.UserFunction(
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108 | NAME, |
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109 | this.current.getName(),
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110 | argNames, |
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111 | code |
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112 | ); |
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113 | return new AbstractMap.SimpleEntry( |
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114 | this.current.getName().toUpperCase(),
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115 | function |
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116 | ); |
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117 | } |
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118 | }; |
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119 | return it;
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120 | } |
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121 | } |
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122 | |||
123 | public BookmarksSymbolTable() {
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124 | super(NAME);
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125 | this.functions = new AbstractMap<String, Function>() { |
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126 | @Override
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127 | public Set<Map.Entry<String, Function>> entrySet() { |
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128 | return new BookmarksFunctionsEntrySet(); |
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129 | } |
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130 | }; |
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131 | } |
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132 | |||
133 | @Override
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134 | protected Map<String, Object> getVars() { |
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135 | return Collections.EMPTY_MAP; |
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136 | } |
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137 | |||
138 | } |