Mercurial > hg > Members > shoshi > jungle > jungle-core
view src/main/java/jp/ac/u_ryukyu/ie/cr/jungle/transaction/node/Default/DefaultTreeNodeAttribute.java @ 329:2a0cb1f0ba4e
rename Error package
author | kono |
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date | Sat, 08 Jul 2017 21:05:55 +0900 |
parents | 20fac8350822 |
children |
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package jp.ac.u_ryukyu.ie.cr.jungle.transaction.node.Default; import jp.ac.u_ryukyu.ie.cr.jungle.data.list.List; import jp.ac.u_ryukyu.ie.cr.jungle.store.trasnformer.NodeEditorError; import jp.ac.u_ryukyu.ie.cr.jungle.transaction.node.TreeNode; import jp.ac.u_ryukyu.ie.cr.jungle.transaction.node.TreeNodeAttributes; import jp.ac.u_ryukyu.ie.cr.jungle.util.DefaultEither; import jp.ac.u_ryukyu.ie.cr.jungle.util.Either; import jp.ac.u_ryukyu.ie.cr.jungle.util.jungleError.Error; import jp.ac.u_ryukyu.ie.cr.jungle.data.treemap.TreeMap; import java.nio.ByteBuffer; import java.util.Iterator; import java.util.Optional; public class DefaultTreeNodeAttribute implements TreeNodeAttributes { public List<TreeNode> children; public TreeMap<String, ByteBuffer> attrs; public DefaultTreeNodeAttribute(List<TreeNode> _children, TreeMap<String, ByteBuffer> _attrs) { children = _children; attrs = _attrs; } @Override public Either<Error, TreeNode> delete(String _key) { if (_key == null) { return DefaultEither.newA(NodeEditorError.NULL_VALUE_NOT_ALLOWED); } if (null == attrs.get(_key)) { return DefaultEither.newA(NodeEditorError.DELETE_KEY_NOT_FOUND); } TreeMap<String, ByteBuffer> newMap = attrs.delete(_key); TreeNode newNode = new DefaultTreeNode(children, newMap); return DefaultEither.newB(newNode); } @Override public Either<Error, TreeNode> put(String _key, ByteBuffer _value) { if (_key == null || _value == null) { return DefaultEither.newA(NodeEditorError.NULL_VALUE_NOT_ALLOWED); } TreeMap<String, ByteBuffer> newMap = attrs.put(_key, _value); TreeNode newNode = new DefaultTreeNode(children, newMap); return DefaultEither.newB(newNode); } @Override public ByteBuffer get(String _key) { if (_key == null) { return null; } Optional<ByteBuffer> op = attrs.get(_key); if (op.isPresent()) { return op.get(); } return null; } @Override public String getString(String key) { ByteBuffer attribute = get(key); if (attribute != null) return new String(attribute.array()); return null; } @Override public Iterator<String> getKeys() { return attrs.keys(); } @Override public Iterator<String> getFilteringKey(java.util.List<String> filter) { return new Iterator<String>() { private Iterator<String> keys = attrs.keys(); private String next = init(); private String init() { while (keys.hasNext()) { String key = keys.next(); if (filter.contains(key)) continue; return key; } return null; } @Override public boolean hasNext() { return next != null; } @Override public String next() { String tmp = next; next = init(); return tmp; } }; } @Override public boolean contain(String key) { return attrs.get(key) != null; } }