Here you can find the source of getNXInfo1(Node xmlDoc, String NXclassPath, String NXclassNameList, String fieldName, String filename)
| Parameter | Description |
|---|---|
| xmlDoc | The top node( or what is left) of a DOM document |
| NXclassPath | A dot separated list of Nexus Classes. These appear as <NXentry name="...in the XML file. Only those parts of the xml document will be searched. This can be null for all NeXus classnames to be searched |
| NXclassNameList | The name of the NeXus Class. The name is in the name= attribute. This also can be null( all will be considered) , or a dot separated set of names (two consecutive dots mean anything, - means no name ). NOTE: the names MUST correspond to the Classes in NXclassPath |
| fieldName | NOT USED The specific field name( tag or name attribute) to search for. No Dots. Include this at the end of NXclassPath if a class name or at the end of NXclassNameList if a name of a class. |
| filename | The tag of the node must have a filename attribute corresponding to this filename |
public static Node getNXInfo1(Node xmlDoc, String NXclassPath, String NXclassNameList, String fieldName, String filename)
//package com.java2s; /* //ww w . ja va 2s . c o m * File: Util.java * * Copyright (C) 2007 Ruth Mikkelson * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. * * Contact : Dennis Mikkelson<mikkelsond@uwstout.edu> * MSCS Department * HH237H * Menomonie, WI. 54751 * (715)-232-2291 * * This work was supported by the National Science Foundation under grant * number DMR-0426797, and by the Intense Pulsed Neutron Source Division * of Argonne National Laboratory, Argonne, IL 60439-4845, USA. * * * Modified: * $Log$ * Revision 1.7 2007/08/16 17:46:14 rmikk * Added GPL * Fixed calculations in working with non trailing *'s in position fields of a NeXus * file * */ import org.w3c.dom.*; public class Main { /** * Finds information in an XML document * @param xmlDoc The top node( or what is left) of a DOM document * @param NXclassPath A dot separated list of Nexus Classes. These appear * as <NXentry name="...in the XML file. Only those * parts of the xml document will be searched. * This can be null for all NeXus classnames to be * searched * * @param NXclassNameList The name of the NeXus Class. The name is in the * name= attribute. This also can be null( all will * be considered) , or a dot separated set of names * (two consecutive dots mean anything, - means no name * ). NOTE: the names MUST correspond to the Classes in * NXclassPath * * @param fieldName NOT USED The specific field name( tag or name * attribute) to search for. No Dots. Include this * at the end of NXclassPath if a class name or at * the end of NXclassNameList if a name of a class. * * @param filename The tag of the node must have a filename attribute * corresponding to this filename * * @return The first node or [sub]node satisfying the parameters * * NOTE: Use getLeafNodeValue to get the value of the node if it is a leaf. * */ public static Node getNXInfo1(Node xmlDoc, String NXclassPath, String NXclassNameList, String fieldName, String filename) { if (xmlDoc == null) return null; NXclassPath = standardize_dot_sep_list(NXclassPath); NXclassNameList = standardize_dot_sep_list(NXclassNameList); if (filename != null && filename.length() < 1) filename = null; NodeList children = xmlDoc.getChildNodes(); if (children.getLength() == 1) if ("data".equals(children.item(0).getNodeName())) { xmlDoc = children.item(0); children = xmlDoc.getChildNodes(); } if ((NXclassPath == null) && (NXclassNameList == null) && (fieldName == null) && (filename == null)) return xmlDoc; for (int ik = 0; ik < children.getLength(); ik++) { Node NN = children.item(ik); String NextNXclassPath = NXclassPath; String NextNXclassNameList = NXclassNameList; String Nextfilename = filename; if (NXclassPath != null) if (NXclassPath.startsWith("..")) NextNXclassPath = NXclassPath.substring(1); else if (NXclassPath.indexOf("." + NN.getNodeName() + ".") == 0) NextNXclassPath = NXclassPath.substring(NXclassPath.indexOf(".", 1)); NamedNodeMap atts = NN.getAttributes(); if (NXclassNameList != null && atts != null) if (NXclassNameList.startsWith("..")) NextNXclassNameList = NXclassNameList.substring(1); else { Node attNode = atts.getNamedItem("name"); if (attNode == null && NXclassNameList.startsWith(".-.")) NextNXclassNameList = NXclassNameList.substring(3); else if (attNode != null && NXclassNameList.indexOf("." + attNode.getNodeValue() + ".") == 0) NextNXclassNameList = NXclassNameList.substring(NXclassNameList.indexOf(".", 1)); } if ((filename != null) && (atts != null)) { Node attNode = atts.getNamedItem("filename"); if (attNode != null) if (filename.equals(attNode.getNodeValue())) Nextfilename = null; } Node X = null; if (NXclassPath == null || NXclassNameList == null || (NXclassPath != NextNXclassPath && NXclassNameList != NextNXclassNameList))// only pop name list //if class popped X = getNXInfo1(NN, NextNXclassPath, NextNXclassNameList, fieldName, Nextfilename); else X = getNXInfo1(NN, NXclassPath, NXclassNameList, fieldName, Nextfilename); if (X != null) return X; } //for each child return null; } private static String standardize_dot_sep_list(String S) { if (S == null) return null; S = S.trim(); if (S.length() < 1) return null; if (!S.endsWith(".")) S += "."; if (!S.startsWith(".")) S = "." + S; if (S.length() <= 2) return null; //eliminate all dots boolean nonDotFound = false; for (int i = 0; i < S.length() && !nonDotFound; i++) if (S.charAt(i) != '.') if (S.charAt(i) != ' ') nonDotFound = true; if (!nonDotFound) return null; return S; } }