diff options
Diffstat (limited to 'java/src/hdf/hdf5lib/structs')
-rw-r--r-- | java/src/hdf/hdf5lib/structs/H5FD_hdfs_fapl_t.java | 102 | ||||
-rw-r--r-- | java/src/hdf/hdf5lib/structs/H5FD_ros3_fapl_t.java | 123 |
2 files changed, 225 insertions, 0 deletions
diff --git a/java/src/hdf/hdf5lib/structs/H5FD_hdfs_fapl_t.java b/java/src/hdf/hdf5lib/structs/H5FD_hdfs_fapl_t.java new file mode 100644 index 0000000..9fcff2e --- /dev/null +++ b/java/src/hdf/hdf5lib/structs/H5FD_hdfs_fapl_t.java @@ -0,0 +1,102 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Read-Only HDFS Virtual File Driver (VFD) * + * Copyright (c) 2018, The HDF Group. * + * * + * All rights reserved. * + * * + * NOTICE: * + * All information contained herein is, and remains, the property of The HDF * + * Group. The intellectual and technical concepts contained herein are * + * proprietary to The HDF Group. Dissemination of this information or * + * reproduction of this material is strictly forbidden unless prior written * + * permission is obtained from The HDF Group. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +package hdf.hdf5lib.structs; + +import java.io.Serializable; + +/* + * Java representation of the HDFS VFD file access property list (fapl) + * structure. + * + * Used for the access of files hosted on the Hadoop Distributed File System. + */ + +public class H5FD_hdfs_fapl_t implements Serializable { + private static final long serialVersionUID = 2072473407027648309L; + + private int version; + private String namenode_name; + private int namenode_port; + private String user_name; + private String kerberos_ticket_cache; + private int stream_buffer_size; + + /* + * Create a fapl_t structure with the specified components. + */ + public H5FD_hdfs_fapl_t( + String namenode_name, + int namenode_port, + String user_name, + String kerberos_ticket_cache, + int stream_buffer_size) + { + this.version = 1; + this.namenode_name = namenode_name; + this.namenode_port = namenode_port; + this.user_name = user_name; + this.kerberos_ticket_cache = kerberos_ticket_cache; + this.stream_buffer_size = stream_buffer_size; + } + + @Override + public boolean equals(Object o) { + if (o == null) + return false; + if (!(o instanceof H5FD_hdfs_fapl_t)) + return false; + + H5FD_hdfs_fapl_t other = (H5FD_hdfs_fapl_t)o; + if (this.version != other.version) + return false; + if (!this.namenode_name.equals(other.namenode_name)) + return false; + if (this.namenode_port != other.namenode_port) + return false; + if (!this.user_name.equals(other.user_name)) + return false; + if (!this.kerberos_ticket_cache.equals(other.kerberos_ticket_cache)) + return false; + if (this.stream_buffer_size != other.stream_buffer_size) + return false; + return true; + } + + @Override + public int hashCode() { + /* this is a _very bad_ hash algorithm for purposes of hashing! */ + /* implemented to satisfy the "contract" regarding equality */ + int k = (int)this.version; + k += this.namenode_name.length(); + k += this.user_name.length(); + k += this.kerberos_ticket_cache.length(); + k += namenode_port; + k += stream_buffer_size; + return k; + } + + @Override + public String toString() { + return "H5FD_hdfs_fapl_t (Version: " + this.version + ") {" + + "\n namenode_name: '" + this.namenode_name + + "'\n namenode_port: " + this.namenode_port + + "\n user_name: '" + this.user_name + + "'\n kerberos_ticket_cache: '" + this.kerberos_ticket_cache + + "'\n stream_buffer_size: " + this.stream_buffer_size + + "\n}\n"; + } +} + + diff --git a/java/src/hdf/hdf5lib/structs/H5FD_ros3_fapl_t.java b/java/src/hdf/hdf5lib/structs/H5FD_ros3_fapl_t.java new file mode 100644 index 0000000..a899e10 --- /dev/null +++ b/java/src/hdf/hdf5lib/structs/H5FD_ros3_fapl_t.java @@ -0,0 +1,123 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Read-Only S3 Virtual File Driver (VFD) * + * Copyright (c) 2017-2018, The HDF Group. * + * * + * All rights reserved. * + * * + * NOTICE: * + * All information contained herein is, and remains, the property of The HDF * + * Group. The intellectual and technical concepts contained herein are * + * proprietary to The HDF Group. Dissemination of this information or * + * reproduction of this material is strictly forbidden unless prior written * + * permission is obtained from The HDF Group. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +package hdf.hdf5lib.structs; + +import java.io.Serializable; + +/* + * Java representation of the ROS3 VFD file access property list (fapl) + * structure. + * + * Used for the access of files hosted remotely on S3 by Amazon. + * + * For simplicity, implemented assuming that all ROS3 fapls have components: + * - version + * - authenticate + * - aws_region + * - secret_id + * - secret_key + * + * Future implementations may be created to enable different fapl "shapes" + * depending on provided version. + * + * proposed: + * + * H5FD_ros3_fapl_t (super class, has only version field) + * H5FD_ros3_fapl_v1_t (extends super with Version 1 components) + * H5FD_ros3_fapl_v2_t (extends super with Version 2 components) + * and so on, for each version + * + * "super" is passed around, and is version-checked and re-cast as + * appropriate + */ + +public class H5FD_ros3_fapl_t implements Serializable { + private static final long serialVersionUID = 8985533001471224030L; + + private int version; + private boolean authenticate; + private String aws_region; + private String secret_id; + private String secret_key; + + /** + * Create a "default" fapl_t structure, for anonymous access. + */ + public H5FD_ros3_fapl_t () { + /* H5FD_ros3_fapl_t("", "", ""); */ /* defer */ + this.version = 1; + this.aws_region = ""; + this.secret_id = ""; + this.secret_key = ""; + } + + /** + * Create a fapl_t structure with the specified components. + * If all are the empty string, is anonymous (non-authenticating). + * Region and ID must both be supplied for authentication. + * + * @param region "aws region" for authenticating request + * @param id "secret id" or "access id" for authenticating request + * @param key "secret key" or "access key" for authenticating request + */ + public H5FD_ros3_fapl_t (String region, String id, String key) { + this.version = 1; /* must equal H5FD_CURR_ROS3_FAPL_T_VERSION */ + /* as found in H5FDros3.h */ + this.aws_region = region; + this.secret_id = id; + this.secret_key = key; + } + + @Override + public boolean equals(Object o) { + if (o == null) + return false; + if (!(o instanceof H5FD_ros3_fapl_t)) + return false; + + H5FD_ros3_fapl_t other = (H5FD_ros3_fapl_t)o; + if (this.version != other.version) + return false; + if (!this.aws_region.equals(other.aws_region)) + return false; + if (!this.secret_key.equals(other.secret_key)) + return false; + if (!this.secret_id.equals(other.secret_id)) + return false; + return true; + } + + @Override + public int hashCode() { + /* this is a _very bad_ hash algorithm for purposes of hashing! */ + /* implemented to satisfy the "contract" regarding equality */ + int k = (int)this.version; + k += this.aws_region.length(); + k += this.secret_id.length(); + k += this.secret_key.length(); + return k; + } + + @Override + public String toString() { + return "H5FD_ros3_fapl_t (Version:" + this.version + ") {" + + "\n aws_region : " + this.aws_region + + "\n secret_id : " + this.secret_id + + "\n secret_key : " + this.secret_key + + "\n}\n"; + } +} + + |