Mailing-List: contact user-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@hadoop.apache.org
Received-SPF: pass (nike.apache.org: domain of zhunansjtu@gmail.com designates
 209.85.128.49 as permitted sender)
Date: Sat, 14 Dec 2013 19:53:03 -0500
From: Nan Zhu <zhunansjtu@gmail.com>
To: "=?utf-8?Q?common-user=40hadoop.apache.org?="
 <user@hadoop.apache.org>
Message-ID: <5095FF6085B64E03B2A61C5F13EFFE0D@gmail.com>
Subject: manipulate DFSInputStream in FSDataInputStream?
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="52acfd6f_5ff87e05_1af"

--52acfd6f_5ff87e05_1af
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

Hi, all =20

I=E2=80=99m modifying =46SDataInputStream for some project, =20

I would like to directly manipulate =E2=80=9Cin=22 object in my implement=
ation =20

as in the constructor a D=46SInputStream is passed, so I convert =E2=80=9C=
in=E2=80=9D from InputStream to D=46SInputStream with =20

import org.apache.hadoop.hdfs.D=46SClient;

D=46SClient.D=46SInputStream dins =3D (D=46SClient.D=46SInputStream) in;
dins.somemethod(=E2=80=A6)


when I compile my code with ant

it says that =20

=5Bjavac=5D /Users/zhunan/codes/SDNBigData/hadoop-1.2.1/src/core/org/apac=
he/hadoop/fs/=46SDataInputStream.java:20: error: package org.apache.hadoo=
p.hdfs does not exist =20
    =5Bjavac=5D import org.apache.hadoop.hdfs.D=46SClient;


What does this mean=3F

it means that core is compiled before hdfs, so I cannot do this=3F

Thank you very much=21

Best,

-- =20
Nan Zhu
School of Computer Science,
McGill University


--52acfd6f_5ff87e05_1af
Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline


                <div>Hi, all
                </div><div><br></div><div>I=E2=80=99m modifying =46SDataI=
nputStream for some project,&nbsp;</div><div><br></div><div>I would like =
to directly manipulate =E2=80=9Cin=22 object in my implementation&nbsp;</=
div><div><br></div><div>as in the constructor a D=46SInputStream is passe=
d, so I convert =E2=80=9Cin=E2=80=9D from InputStream to D=46SInputStream=
 with&nbsp;</div><div><br></div><div>import org.apache.hadoop.hdfs.D=46SC=
lient;</div><div><br></div><div><div>D=46SClient.D=46SInputStream dins =3D=
 (D=46SClient.D=46SInputStream) in;</div><div>dins.somemethod(=E2=80=A6)<=
/div></div><div><br></div><div>when I compile my code with ant</div><div>=
<br></div><div>it says that&nbsp;</div><div><br></div><div><p style=3D=22=
margin: 0px; font-size: 17px; font-family: 'Courier New'; color: rgb(245,=
 245, 245); background-color: rgb(43, 43, 43);=22>=5Bjavac=5D /Users/zhun=
an/codes/SDNBigData/hadoop-1.2.1/src/core/org/apache/hadoop/fs/=46SDataIn=
putStream.java:20: error: package org.apache.hadoop.hdfs does not exist</=
p>
<p style=3D=22margin: 0px; font-size: 17px; font-family: 'Courier New'; c=
olor: rgb(245, 245, 245); background-color: rgb(43, 43, 43);=22>&nbsp; &n=
bsp; =5Bjavac=5D import org.apache.hadoop.hdfs.D=46SClient;</p></div>
                <div><div><br></div><div><br></div><div>What does this me=
an=3F</div><div><br></div><div>it means that core is compiled before hdfs=
, so I cannot do this=3F</div><div><br></div><div>Thank you very much=21<=
/div><div><br></div><div>Best,</div><div><br></div><div>--&nbsp;</div><di=
v>Nan Zhu</div><div>School of Computer Science,</div><div>McGill Universi=
ty</div><div><br></div></div>
            
--52acfd6f_5ff87e05_1af--