Add PropertyNamerULC. Project: http://git-wip-us.apache.org/repos/asf/incubator-juneau/repo Commit: http://git-wip-us.apache.org/repos/asf/incubator-juneau/commit/de8a66b8 Tree: http://git-wip-us.apache.org/repos/asf/incubator-juneau/tree/de8a66b8 Diff: http://git-wip-us.apache.org/repos/asf/incubator-juneau/diff/de8a66b8
Branch: refs/heads/master Commit: de8a66b87ecc49426df3a3da0aaaa036729dcb1a Parents: 0f030b1 Author: JamesBognar <[email protected]> Authored: Wed May 31 08:25:16 2017 -0400 Committer: JamesBognar <[email protected]> Committed: Wed May 31 08:25:16 2017 -0400 ---------------------------------------------------------------------- .../org/apache/juneau/PropertyNamerULC.java | 64 ++++++++++++++++++++ 1 file changed, 64 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/incubator-juneau/blob/de8a66b8/juneau-core/src/main/java/org/apache/juneau/PropertyNamerULC.java ---------------------------------------------------------------------- diff --git a/juneau-core/src/main/java/org/apache/juneau/PropertyNamerULC.java b/juneau-core/src/main/java/org/apache/juneau/PropertyNamerULC.java new file mode 100644 index 0000000..e5a4672 --- /dev/null +++ b/juneau-core/src/main/java/org/apache/juneau/PropertyNamerULC.java @@ -0,0 +1,64 @@ +// *************************************************************************************************************************** +// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file * +// * distributed with this work for additional information regarding copyright ownership. The ASF licenses this file * +// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance * +// * with the License. You may obtain a copy of the License at * +// * * +// * http://www.apache.org/licenses/LICENSE-2.0 * +// * * +// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an * +// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the * +// * specific language governing permissions and limitations under the License. * +// *************************************************************************************************************************** +package org.apache.juneau; + +/** + * Converts property names to underscore-lower-case format. + * + * <h5 class='section'>Examples:</h5> + * <ul> + * <li><js>"fooBar"</js> -> <js>"foo_bar"</js> + * <li><js>"fooBarURL"</js> -> <js>"foo_bar_url"</js> + * <li><js>"FooBarURL"</js> -> <js>"foo_bar_url"</js> + * </ul> + */ +public final class PropertyNamerULC implements PropertyNamer { + + @Override /* PropertyNamer */ + public String getPropertyName(String name) { + if (name == null || name.isEmpty()) + return name; + + int numUCs = 0; + boolean isPrevUC = Character.isUpperCase(name.charAt(0)); + for (int i = 1; i < name.length(); i++) { + char c = name.charAt(i); + if (Character.isUpperCase(c)) { + if (! isPrevUC) + numUCs++; + isPrevUC = true; + } else { + isPrevUC = false; + } + } + + char[] name2 = new char[name.length() + numUCs]; + isPrevUC = Character.isUpperCase(name.charAt(0)); + name2[0] = Character.toLowerCase(name.charAt(0)); + int ni = 0; + for (int i = 0; i < name.length(); i++) { + char c = name.charAt(i); + if (Character.isUpperCase(c)) { + if (! isPrevUC) + name2[ni++] = '_'; + isPrevUC = true; + name2[ni++] = Character.toLowerCase(c); + } else { + isPrevUC = false; + name2[ni++] = c; + } + } + + return new String(name2); + } +}
