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Date: Fri, 1 Nov 2013 02:16:46 -0700 (PDT)
From: Nurali Techie <nurali.techie@yahoo.com>
Reply-To: Nurali Techie <nurali.techie@yahoo.com>
Subject: Re: Namespace list - blueprint - xpath
To: Aki Yoshida <elakito@gmail.com>,
  "users@camel.apache.org" <users@camel.apache.org>
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Thanks Aki for your thoughts ..=0A=0AYes, I should call setNamespaces() .. =
but I need namespace Map which I can pass to ..=0ASo, my question remain sa=
me .. is there any API or service .. which I can use to get Namespace Map .=
.=0AAnd I hv Camel Exchange and Camel Endpoint object with me ..=0A=0AParsi=
ng blueprint beans.xml and to extract Namespace from <blueprint> tag; looks=
 hack and dirty way ..=0AAlso, I don't know how can I get beans.xml InputSt=
ream to parse for ..=A0=0A=0AI also debugged and found that .. for standard=
 <xpath> tag having namespace xpath in beans.xml .. the blueprint container=
 do magic to pass all namespace while creating xpath expression object. =A0=
It means; namespace list is with blueprint container .. but I don't know ho=
w I can reached to there when I only have Camel Exchange and Endpoint objec=
t with me.=0A=0AThanks,=0ANurali=0A=0A=0A=0AOn Thursday, October 31, 2013 9=
:24 PM, Aki Yoshida <elakito@gmail.com> wrote:=0A =0Afor the first part of =
the question, maybe you forgot the set the=0Anamespace context (the prefix-=
>nsuri map) in the expression?=0A=0AsetNamespaces(Map<String,String> namesp=
aces)=0A=0Afor the second part, you probably need to parse the file that wi=
ll=0Ascan all the namespaces declared and you will see them in the=0Acorres=
ponding namespace declaration handler.=0A=0A=0A2013/10/31 Nurali Techie <nu=
rali.techie@yahoo.com>:=0A> Hi Friends,=0A>=0A> I want to execute xpath in =
my code.=A0 It means; I have xpath expression, I have exchange object with =
In Message.=0A>=0A> Using 'XPathExpression' and 'XPathBuilder' classes; I s=
ucceed to do so.=A0 Below is the code snippet.=0A>=0A>=A0 =A0 =A0 =A0  XPat=
hExpression xpathExprObj =3D new XPathExpression("/userResponse/User/id");=
=0A>=A0 =A0 =A0 =A0  xpathExprObj.setResultType(String.class);=0A>=0A>=A0 =
=A0 =A0 =A0  Object result =3D xpathExprObj.evaluate(exchange, Object.class=
);=0A>=0A> But, if I have xpath with namespace (i.e xpath =3D /ns0:userResp=
onse/User/id).. above code throwing exception .. saying - Prefix must resol=
ve to a namespace: ns0=0A>=0A> Part of Exception:=0A>=0A> org.apache.camel.=
builder.xml.InvalidXPathExpression: Invalid xpath: /ns0:userResponse/User/i=
d. Reason: javax.xml.xpath.XPathExpressionException=0A> at org.apache.camel=
.builder.xml.XPathBuilder.evaluateAs(XPathBuilder.java:767) ~[bundlefile:2.=
11.2-sap-02]=0A> at org.apache.camel.builder.xml.XPathBuilder.evaluate(XPat=
hBuilder.java:748) ~[bundlefile:2.11.2-sap-02]=0A> at org.apache.camel.buil=
der.xml.XPathBuilder.evaluate(XPathBuilder.java:168) ~[bundlefile:2.11.2-sa=
p-02]=0A> at *** My project code calling from here ..=0A> ..........=0A> --=
-----=0A> Caused by: com.sun.org.apache.xpath.internal.domapi.XPathStyleshe=
etDOM3Exception: Prefix must resolve to a namespace: ns0=0A> at com.sun.org=
.apache.xpath.internal.compiler.XPathParser.errorForDOM3(XPathParser.java:6=
53) ~[na:1.6.0_33]=0A> at com.sun.org.apache.xpath.internal.compiler.Lexer.=
mapNSTokens(Lexer.java:638) ~[na:1.6.0_33]=0A> at com.sun.org.apache.xpath.=
internal.compiler.Lexer.tokenize(Lexer.java:265) ~[na:1.6.0_33]=0A> at com.=
sun.org.apache.xpath.internal.compiler.Lexer.tokenize(Lexer.java:96) ~[na:1=
.6.0_33]=0A> at com.sun.org.apache.xpath.internal.compiler.XPathParser.init=
XPath(XPathParser.java:110) ~[na:1.6.0_33]=0A> at com.sun.org.apache.xpath.=
internal.XPath.<init>(XPath.java:176) ~[na:1.6.0_33]=0A> at com.sun.org.apa=
che.xpath.internal.XPath.<init>(XPath.java:264) ~[na:1.6.0_33]=0A> at com.s=
un.org.apache.xpath.internal.jaxp.XPathImpl.compile(XPathImpl.java:385) ~[n=
a:1.6.0_33]=0A>=0A> Upon digging; I found that .. I need to set namespaces =
to XPathExpression object .. So, I need list of all namespace.=0A> I am usi=
ng blueprint beans.xml .. so I need list of all namespaces defined with blu=
eprint tag in beans.xml.=0A>=0A> I have camel exchange and camel endpoint o=
bject with me.=0A> I want programmatic solution.=0A>=0A> Thanks,=0A> Nurali
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