diff options
author | gjoranv <gv@oath.com> | 2017-08-31 15:35:01 +0200 |
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committer | gjoranv <gv@oath.com> | 2017-08-31 16:42:00 +0200 |
commit | f6ec274aab8d1b4d2ac25c104bc5a603dc4156ff (patch) | |
tree | 1bb34e8b61d43516100949def824a28ec3523219 /configgen/src/main/java/com/yahoo | |
parent | b3a4db45c7fae896a2d5e9ae3fbf2b7fd072f7c9 (diff) |
Rewrite ConfigGenerator.createClassName to Java.
- In new class ConfiggenUtil.
- This allows using the function without loading classes from
scala-xml.
Diffstat (limited to 'configgen/src/main/java/com/yahoo')
-rw-r--r-- | configgen/src/main/java/com/yahoo/config/codegen/ConfiggenUtil.java | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/configgen/src/main/java/com/yahoo/config/codegen/ConfiggenUtil.java b/configgen/src/main/java/com/yahoo/config/codegen/ConfiggenUtil.java new file mode 100644 index 00000000000..a7a3eb718a3 --- /dev/null +++ b/configgen/src/main/java/com/yahoo/config/codegen/ConfiggenUtil.java @@ -0,0 +1,43 @@ +package com.yahoo.config.codegen; + +import java.util.Arrays; +import java.util.stream.Collectors; + +/** + * @author gjoranv + */ +public class ConfiggenUtil { + + /** + * Create class name from def name + * @param defName The file name without the '.def' suffix + */ + public static String createClassName(String defName) { + String className = Arrays.stream(defName.split("-")) + .map(ConfiggenUtil::capitalize) + .collect(Collectors.joining()) + + "Config"; + + if (! isLegalJavaIdentifier(className)) + throw new CodegenRuntimeException("Illegal config definition file name '" + defName + + "'. Must be a legal Java identifier."); + + return className; + } + + private static String capitalize(String in) { + StringBuilder sb = new StringBuilder(in); + sb.setCharAt(0, Character.toTitleCase(in.charAt(0))); + return sb.toString(); + } + + private static boolean isLegalJavaIdentifier(String name) { + if (name.isEmpty()) return false; + if (! Character.isJavaIdentifierStart(name.charAt(0))) return false; + + for (char c : name.substring(1).toCharArray()) { + if (! Character.isJavaIdentifierPart(c)) return false; + } + return true; + } +} |