org.ecoinformatics.seek.dataquery

Class DelimiterResolver

java.lang.Object

org.ecoinformatics.seek.dataquery.DelimiterResolver

public class DelimiterResolver
extends java.lang.Object

This class will map delimter format in metadata (e.g eml documents) to the format in db (e.g, hsql).

Author:

Jing Tao

Constructor Summary

Constructors

Constructor and Description
DelimiterResolver() Constructor.

Method Summary

Modifier and Type	Method and Description
java.lang.String	resolve(java.lang.String metadataDelimiter) This method will figure out a db delimiter when given a metadata delimiter.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DelimiterResolver

public DelimiterResolver()

Constructor. It will read config file and find the sepciy delimiter mapping then put them into a hash table. metadata delimiter is a key and db delimter is a value. For example, ; maps \semi. It also will read prefix mapping and metadata delimiter is a key and db delimiter is a value. For example 0x maps \\u

Method Detail

resolve

public java.lang.String resolve(java.lang.String metadataDelimiter)

This method will figure out a db delimiter when given a metadata delimiter. If metadataDelimiter is null, null will be returned. Here is way: 1. If the given metadataDelimiter is in the special hash (read from config file), the mapping will return from the hash. 2. If the given metadataDelimter is start with a prefix mapping, the mapping value will replaced by mapping key. for example a hexademical number start with "0x", (e.g. 0x##), the mapping to "0x" is "\\u", so "\\u##" will be returned. 3. The others will return itself(the given metadataDelimiter)

Parameters:

metadataDelimiter - String

Returns:

String