File	Doc	Category	Size	Date	Package
JvmOptionsHelper.java	API Doc	Glassfish v2 API	13473	Fri May 04 22:25:58 BST 2007	com.sun.enterprise.admin.util

JvmOptionsHelper

• java.lang.Object

Fields Summary
private final JvmOptionsElement	head First in the chain of responsibility

Constructors Summary
public JvmOptionsHelper(String[] options) if (null == options) { throw new IllegalArgumentException(); } if(options.length == 0) { head = new JvmOptionsElement(""); } else { head = new JvmOptionsElement(options[0]); } JvmOptionsElement current = head; for (int i = 1; i < options.length; i++) { JvmOptionsElement next = new JvmOptionsElement(options[i]); current.setNext(next); current = next; }

Methods Summary
public java.lang.String[]	addJvmOptions(java.lang.String[] options) Adds the options to its current set. Omits options that already exist. Note :- This method depends on the exact String comparision of the options. Hence an option "a=b c=d" will be added even if individual options already exist. param options return Returns an array of options that could not be added. The array will be atleast of 0 length. An array of length > 0 indicates that some options haven't been added successfully. throws InvalidJvmOptionException If any option is invalid. For example, an option that does not start with '-'. throws IllegalArgumentException If options param is null. if (null == options) { throw new IllegalArgumentException(); } final Set alreadyExist = new HashSet(); JvmOptionsElement last = last(); for (int i = 0; i < options.length; i++) { if (!head.hasOption(options[i])) { JvmOptionsElement x = new JvmOptionsElement(options[i]); last.setNext(x); last = x; } else { alreadyExist.add(options[i]); } } return toStringArray(alreadyExist);
public java.lang.String[]	deleteJvmOptions(java.lang.String[] options) Deletes the options from its current set. param options return Returns an array of options that could not be deleted. The array will be atleast of 0 length. An array of length > 0 indicates that some options haven't been deleted successfully. throws IllegalArgumentException If options param is null. if (null == options) { throw new IllegalArgumentException(); } //The following tokenizes the options. // options = tokenize(options); final Set donotExist = new HashSet(); for (int i = 0; i < options.length; i++) { if (!head.deleteJvmOption(options[i])) { donotExist.add(options[i]); } } return toStringArray(donotExist);
public java.lang.String[]	getJvmOptions() Returns the current set of Jvm options. Set s = new LinkedHashSet(); JvmOptionsElement current = head; while (!JvmOptionsElement.isLast(current)) { ArrayList options = current.getJvmOptions(); if ((options != null) && (options.size() > 0)) { s.addAll(options); } current = current.next(); } return toStringArray(s);
public java.lang.String[]	getJvmOptionsAsStoredInXml() Returns the current set of Jvm options. Set s = new LinkedHashSet(); JvmOptionsElement current = head; while (!JvmOptionsElement.isLast(current)) { String options = current.getJvmOptionsAsStoredInXml(); if ((options != null) && (options.length() > 0)) { s.add(options); } current = current.next(); } return toStringArray(s);
public com.sun.enterprise.admin.util.JvmOptionsElement	last() Returns the last JvmOptionsElement in the chain of responsibility. JvmOptionsElement current = head; while (current.hasNext()) { current = current.next(); } return current;
public static java.lang.String[]	toStringArray(java.util.Collection c) final String[] s = new String[c.size()]; final Iterator it = c.iterator(); int i = 0; while (it.hasNext()) { s[i] = (String)it.next(); i++; } return s;
private static java.lang.String[]	tokenize(java.lang.String[] options) Set s = new LinkedHashSet(); //4923404 for (int i = 0; i < options.length; i++) { QuotedStringTokenizer strTok = new QuotedStringTokenizer( options[i], " \t"); while (strTok.hasMoreTokens()) { s.add(strTok.nextToken()); } } //4923404 return toStringArray(s);