--- a/bash-completion.sh Sat Jan 11 00:58:35 2020 +0100
+++ b/bash-completion.sh Sat Jan 11 18:13:30 2020 +0100
@@ -60,13 +60,13 @@
elif [[ "$w2" == "--option" && "x$w0" == "x" ]]; then COMPREPLY=("''")
elif [[ "$w1" == "--file" ]]; then COMPREPLY=($(compgen -W "${FILE_FIELDS[*]}" -- "$w0"))
elif [[ "$w1" == "--xattr" ]]; then COMPREPLY=($(compgen -W "${XATTR_FIELDS[*]}" -- "$w0"))
- elif [[ "$w1" == "--exec" ]]; then COMPREPLY=($(compgen -W "$(_relpipe_in_filesystem_scripts)" -- "$w0"))
+ elif [[ "$w1" == "--streamlet" ]]; then COMPREPLY=($(compgen -W "$(_relpipe_in_filesystem_scripts)" -- "$w0"))
else
OPTIONS=(
"--relation"
"--file"
"--xattr"
- "--exec"
+ "--streamlet"
"--as"
"--option"
)
--- a/src/CLIParser.h Sat Jan 11 00:58:35 2020 +0100
+++ b/src/CLIParser.h Sat Jan 11 18:13:30 2020 +0100
@@ -51,7 +51,7 @@
static const string_t OPTION_FILE;
static const string_t OPTION_XATTR;
- static const string_t OPTION_EXEC;
+ static const string_t OPTION_STREAMLET;
static const string_t OPTION_AS;
static const string_t OPTION_OPTION;
static const string_t OPTION_RELATION;
@@ -68,7 +68,7 @@
for (int i = 0; i < arguments.size();) {
string_t option = readNext(arguments, i);
- if (option == CLIParser::OPTION_FILE || option == CLIParser::OPTION_XATTR || option == CLIParser::OPTION_EXEC) {
+ if (option == CLIParser::OPTION_FILE || option == CLIParser::OPTION_XATTR || option == CLIParser::OPTION_STREAMLET) {
addField(c, currentGroup, currentName, currentAliases, currentOptions); // previous field
currentGroup = option.substr(2); // cut off --
currentName = readNext(arguments, i);
@@ -115,7 +115,7 @@
const string_t CLIParser::OPTION_FILE = L"--" + RequestedField::GROUP_FILE;
const string_t CLIParser::OPTION_XATTR = L"--" + RequestedField::GROUP_XATTR;
-const string_t CLIParser::OPTION_EXEC = L"--" + RequestedField::GROUP_EXEC;
+const string_t CLIParser::OPTION_STREAMLET = L"--" + RequestedField::GROUP_STREAMLET;
const string_t CLIParser::OPTION_AS = L"--as";
const string_t CLIParser::OPTION_OPTION = L"--option";
const string_t CLIParser::OPTION_RELATION = L"--relation";
--- a/src/ExecAttributeFinder.h Sat Jan 11 00:58:35 2020 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,139 +0,0 @@
-/**
- * Relational pipes
- * Copyright © 2019 František Kučera (Frantovo.cz, GlobalCode.info)
- *
- * 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, version 3 of the License.
- *
- * 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 program. If not, see <http://www.gnu.org/licenses/>.
- */
-#pragma once
-
-#include <vector>
-#include <filesystem>
-#include <regex>
-#include <memory>
-
-#include <relpipe/writer/typedefs.h>
-#include <relpipe/writer/AttributeMetadata.h>
-#include <relpipe/writer/RelationalWriter.h>
-
-#include "RequestedField.h"
-#include "SubProcess.h"
-#include "AttributeFinder.h"
-#include "ExecMsg.h"
-
-namespace relpipe {
-namespace in {
-namespace filesystem {
-
-namespace fs = std::filesystem;
-using namespace relpipe::writer;
-
-class ExecAttributeFinder : public AttributeFinder {
-private:
- std::wstring_convert<codecvt_utf8<wchar_t>> convertor; // TODO: support also other encodings.
- std::map<int, std::shared_ptr<SubProcess>> subProcesses;
- std::map<int, std::vector<AttributeMetadata>> cachedMetadata;
-
- string_t getExecCommand(const RequestedField& field) {
- // TODO: move to another directory, exec, not script + use custom $PATH with no prefix
- return SCRIPT_PREFIX + field.name;
- }
-
-protected:
-
- virtual void writeFieldOfExistingFile(RelationalWriter* writer, const RequestedField& field) override {
- // TODO: paralelize also over records → fork multiple processes and distribute records across them; then collect results (with a lock)
- if (field.group == RequestedField::GROUP_EXEC) {
-
- subProcesses[field.id]->write({ExecMsg::INPUT_ATTRIBUTE, L"0", convertor.from_bytes(currentFileRaw), L"false"}); // index, value, isNull
- subProcesses[field.id]->write({ExecMsg::WAITING_FOR_OUTPUT_ATTRIBUTES});
-
- for (auto metadata : cachedMetadata[field.id]) {
- SubProcess::Message m = subProcesses[field.id]->read();
- if (m.code == ExecMsg::OUTPUT_ATTRIBUTE) writer->writeAttribute(m.parameters[0]);
- else throw RelpipeWriterException(L"Protocol violation from exec sub-process while reading: „" + metadata.attributeName + L"“. Expected OUTPUT_ATTRIBUTE but got: " + m.toString());
- }
-
- SubProcess::Message m = subProcesses[field.id]->read();
- if (m.code != ExecMsg::WAITING_FOR_INPUT_ATTRIBUTES) throw RelpipeWriterException(L"Protocol violation from exec sub-process. Expected WAITING_FOR_INPUT_ATTRIBUTES but got: " + m.toString());
- // TODO: generic protocol violation error messages / method for checking responses
- }
- }
-
-public:
-
- static const string_t SCRIPT_PREFIX;
-
- virtual vector<AttributeMetadata> toMetadata(RelationalWriter* writer, const RequestedField& field) override {
- if (field.group == RequestedField::GROUP_EXEC) {
-
- if (cachedMetadata.count(field.id)) {
- return cachedMetadata[field.id];
- } else {
-
- std::vector<string_t> commandLine = {getExecCommand(field)};
- std::map<string_t, string_t> environment;
-
- for (auto mn : ExecMsg::getMessageNames()) {
- environment[L"EXEC_MSG_" + mn.second] = std::to_wstring(mn.first);
- environment[L"EXEC_MSG_" + std::to_wstring(mn.first)] = mn.second;
- }
-
- shared_ptr<SubProcess> subProcess(SubProcess::create(commandLine, environment, false));
- subProcesses[field.id] = subProcess;
-
- string_t version = L"1";
- subProcess->write({ExecMsg::VERSION_SUPPORTED, version});
- subProcess->write({ExecMsg::WAITING_FOR_VERSION});
- SubProcess::Message versionMessage = subProcess->read();
- if (versionMessage.code == ExecMsg::VERSION_ACCEPTED && versionMessage.parameters[0] == version) {
- subProcess->write({ExecMsg::RELATION_START});
- subProcess->write({ExecMsg::INPUT_ATTRIBUTE_METADATA, L"path", L"string"});
- for (string_t alias : field.getAliases()) subProcess->write({ExecMsg::OUTPUT_ATTRIBUTE_ALIAS, alias});
- for (int i = 0; i < field.options.size();) subProcess->write({ExecMsg::OPTION, field.options[i++], field.options[i++]});
- subProcess->write({ExecMsg::WAITING_FOR_OUTPUT_ATTRIBUTES_METADATA});
-
- vector<AttributeMetadata> metadata;
- while (true) {
- SubProcess::Message m = subProcess->read();
- if (m.code == ExecMsg::OUTPUT_ATTRIBUTE_METADATA) metadata.push_back({m.parameters[0], writer->toTypeId(m.parameters[1])});
- else if (m.code == ExecMsg::WAITING_FOR_INPUT_ATTRIBUTES) break;
- }
-
- cachedMetadata[field.id] = metadata;
- return metadata;
- } else {
- throw RelpipeWriterException(L"Incompatible exec sub-process version or message: " + versionMessage.toString());
- }
- }
- } else {
- return {};
- }
- }
-
- virtual ~ExecAttributeFinder() override {
- for (auto s : subProcesses) {
- try {
- s.second->write({ExecMsg::RELATION_END});
- s.second->wait();
- } catch (...) {
- std::wcerr << L"Exception caught during closing sub-process #" + std::to_wstring(s.first) + L" and waiting for its end." << std::endl;
- }
- }
- }
-};
-
-const relpipe::writer::string_t ExecAttributeFinder::SCRIPT_PREFIX = L"__relpipe_in_filesystem_script_";
-
-}
-}
-}
--- a/src/ExecMsg.h Sat Jan 11 00:58:35 2020 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,86 +0,0 @@
-// This file was generated from the specification.
-
-#include <map>
-#include <string>
-
-namespace relpipe {
-namespace in {
-namespace filesystem {
-
-class ExecMsg {
-public:
-
- static const int VERSION_SUPPORTED;
- static const int WAITING_FOR_VERSION;
- static const int VERSION_ACCEPTED;
- static const int RELATION_START;
- static const int INPUT_ATTRIBUTE_METADATA;
- static const int OUTPUT_ATTRIBUTE_ALIAS;
- static const int OPTION;
- static const int COMPLETION_REQUEST;
- static const int COMPLETION;
- static const int COMPLETION_END;
- static const int WAITING_FOR_OUTPUT_ATTRIBUTES_METADATA;
- static const int OUTPUT_ATTRIBUTE_METADATA;
- static const int WAITING_FOR_INPUT_ATTRIBUTES;
- static const int INPUT_ATTRIBUTE;
- static const int WAITING_FOR_OUTPUT_ATTRIBUTES;
- static const int OUTPUT_ATTRIBUTE;
- static const int EXECUTOR_ERROR;
- static const int PROCESS_ERROR;
- static const int PROCESS_WARNING;
- static const int RELATION_END;
-
- static std::map<int, std::wstring> getMessageNames() {
- std::map<int, std::wstring> m;
-
- m[VERSION_SUPPORTED] = L"VERSION_SUPPORTED";
- m[WAITING_FOR_VERSION] = L"WAITING_FOR_VERSION";
- m[VERSION_ACCEPTED] = L"VERSION_ACCEPTED";
- m[RELATION_START] = L"RELATION_START";
- m[INPUT_ATTRIBUTE_METADATA] = L"INPUT_ATTRIBUTE_METADATA";
- m[OUTPUT_ATTRIBUTE_ALIAS] = L"OUTPUT_ATTRIBUTE_ALIAS";
- m[OPTION] = L"OPTION";
- m[COMPLETION_REQUEST] = L"COMPLETION_REQUEST";
- m[COMPLETION] = L"COMPLETION";
- m[COMPLETION_END] = L"COMPLETION_END";
- m[WAITING_FOR_OUTPUT_ATTRIBUTES_METADATA] = L"WAITING_FOR_OUTPUT_ATTRIBUTES_METADATA";
- m[OUTPUT_ATTRIBUTE_METADATA] = L"OUTPUT_ATTRIBUTE_METADATA";
- m[WAITING_FOR_INPUT_ATTRIBUTES] = L"WAITING_FOR_INPUT_ATTRIBUTES";
- m[INPUT_ATTRIBUTE] = L"INPUT_ATTRIBUTE";
- m[WAITING_FOR_OUTPUT_ATTRIBUTES] = L"WAITING_FOR_OUTPUT_ATTRIBUTES";
- m[OUTPUT_ATTRIBUTE] = L"OUTPUT_ATTRIBUTE";
- m[EXECUTOR_ERROR] = L"EXECUTOR_ERROR";
- m[PROCESS_ERROR] = L"PROCESS_ERROR";
- m[PROCESS_WARNING] = L"PROCESS_WARNING";
- m[RELATION_END] = L"RELATION_END";
-
- return m;
- }
-
-};
-
-const int ExecMsg::VERSION_SUPPORTED = 100;
-const int ExecMsg::WAITING_FOR_VERSION = 101;
-const int ExecMsg::VERSION_ACCEPTED = 102;
-const int ExecMsg::RELATION_START = 103;
-const int ExecMsg::INPUT_ATTRIBUTE_METADATA = 104;
-const int ExecMsg::OUTPUT_ATTRIBUTE_ALIAS = 105;
-const int ExecMsg::OPTION = 106;
-const int ExecMsg::COMPLETION_REQUEST = 107;
-const int ExecMsg::COMPLETION = 108;
-const int ExecMsg::COMPLETION_END = 109;
-const int ExecMsg::WAITING_FOR_OUTPUT_ATTRIBUTES_METADATA = 110;
-const int ExecMsg::OUTPUT_ATTRIBUTE_METADATA = 111;
-const int ExecMsg::WAITING_FOR_INPUT_ATTRIBUTES = 112;
-const int ExecMsg::INPUT_ATTRIBUTE = 113;
-const int ExecMsg::WAITING_FOR_OUTPUT_ATTRIBUTES = 114;
-const int ExecMsg::OUTPUT_ATTRIBUTE = 115;
-const int ExecMsg::EXECUTOR_ERROR = 116;
-const int ExecMsg::PROCESS_ERROR = 117;
-const int ExecMsg::PROCESS_WARNING = 118;
-const int ExecMsg::RELATION_END = 120;
-
-}
-}
-}
--- a/src/FilesystemCommand.h Sat Jan 11 00:58:35 2020 +0100
+++ b/src/FilesystemCommand.h Sat Jan 11 18:13:30 2020 +0100
@@ -37,7 +37,7 @@
#include "AttributeFinder.h"
#include "FileAttributeFinder.h"
#include "XattrAttributeFinder.h"
-#include "ExecAttributeFinder.h"
+#include "StreamletAttributeFinder.h"
namespace relpipe {
namespace in {
@@ -51,12 +51,12 @@
std::wstring_convert<codecvt_utf8<wchar_t>> convertor; // TODO: support also other encodings.
FileAttributeFinder fileAttributeFinder;
- ExecAttributeFinder execAttributeFinder;
+ StreamletAttributeFinder execAttributeFinder;
XattrAttributeFinder xattrAttributeFinder;
std::map<string_t, AttributeFinder*> attributeFinders{
{RequestedField::GROUP_FILE, &fileAttributeFinder},
- {RequestedField::GROUP_EXEC, &execAttributeFinder},
+ {RequestedField::GROUP_STREAMLET, &execAttributeFinder},
{RequestedField::GROUP_XATTR, &xattrAttributeFinder}};
void reset(std::stringstream& stream) {
--- a/src/RequestedField.h Sat Jan 11 00:58:35 2020 +0100
+++ b/src/RequestedField.h Sat Jan 11 18:13:30 2020 +0100
@@ -30,7 +30,7 @@
public:
static const string_t GROUP_FILE;
static const string_t GROUP_XATTR;
- static const string_t GROUP_EXEC;
+ static const string_t GROUP_STREAMLET;
integer_t id;
string_t group;
string_t name;
@@ -58,7 +58,7 @@
const string_t RequestedField::GROUP_FILE = L"file";
const string_t RequestedField::GROUP_XATTR = L"xattr";
-const string_t RequestedField::GROUP_EXEC = L"exec";
+const string_t RequestedField::GROUP_STREAMLET = L"streamlet";
}
}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/StreamletAttributeFinder.h Sat Jan 11 18:13:30 2020 +0100
@@ -0,0 +1,139 @@
+/**
+ * Relational pipes
+ * Copyright © 2019 František Kučera (Frantovo.cz, GlobalCode.info)
+ *
+ * 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, version 3 of the License.
+ *
+ * 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 program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include <vector>
+#include <filesystem>
+#include <regex>
+#include <memory>
+
+#include <relpipe/writer/typedefs.h>
+#include <relpipe/writer/AttributeMetadata.h>
+#include <relpipe/writer/RelationalWriter.h>
+
+#include "RequestedField.h"
+#include "SubProcess.h"
+#include "AttributeFinder.h"
+#include "StreamletMsg.h"
+
+namespace relpipe {
+namespace in {
+namespace filesystem {
+
+namespace fs = std::filesystem;
+using namespace relpipe::writer;
+
+class StreamletAttributeFinder : public AttributeFinder {
+private:
+ std::wstring_convert<codecvt_utf8<wchar_t>> convertor; // TODO: support also other encodings.
+ std::map<int, std::shared_ptr<SubProcess>> subProcesses;
+ std::map<int, std::vector<AttributeMetadata>> cachedMetadata;
+
+ string_t getExecCommand(const RequestedField& field) {
+ // TODO: move to another directory, exec, not script + use custom $PATH with no prefix
+ return SCRIPT_PREFIX + field.name;
+ }
+
+protected:
+
+ virtual void writeFieldOfExistingFile(RelationalWriter* writer, const RequestedField& field) override {
+ // TODO: paralelize also over records → fork multiple processes and distribute records across them; then collect results (with a lock)
+ if (field.group == RequestedField::GROUP_STREAMLET) {
+
+ subProcesses[field.id]->write({StreamletMsg::INPUT_ATTRIBUTE, L"0", convertor.from_bytes(currentFileRaw), L"false"}); // index, value, isNull
+ subProcesses[field.id]->write({StreamletMsg::WAITING_FOR_OUTPUT_ATTRIBUTES});
+
+ for (auto metadata : cachedMetadata[field.id]) {
+ SubProcess::Message m = subProcesses[field.id]->read();
+ if (m.code == StreamletMsg::OUTPUT_ATTRIBUTE) writer->writeAttribute(m.parameters[0]);
+ else throw RelpipeWriterException(L"Protocol violation from exec sub-process while reading: „" + metadata.attributeName + L"“. Expected OUTPUT_ATTRIBUTE but got: " + m.toString());
+ }
+
+ SubProcess::Message m = subProcesses[field.id]->read();
+ if (m.code != StreamletMsg::WAITING_FOR_INPUT_ATTRIBUTES) throw RelpipeWriterException(L"Protocol violation from exec sub-process. Expected WAITING_FOR_INPUT_ATTRIBUTES but got: " + m.toString());
+ // TODO: generic protocol violation error messages / method for checking responses
+ }
+ }
+
+public:
+
+ static const string_t SCRIPT_PREFIX;
+
+ virtual vector<AttributeMetadata> toMetadata(RelationalWriter* writer, const RequestedField& field) override {
+ if (field.group == RequestedField::GROUP_STREAMLET) {
+
+ if (cachedMetadata.count(field.id)) {
+ return cachedMetadata[field.id];
+ } else {
+
+ std::vector<string_t> commandLine = {getExecCommand(field)};
+ std::map<string_t, string_t> environment;
+
+ for (auto mn : StreamletMsg::getMessageNames()) {
+ environment[L"EXEC_MSG_" + mn.second] = std::to_wstring(mn.first);
+ environment[L"EXEC_MSG_" + std::to_wstring(mn.first)] = mn.second;
+ }
+
+ shared_ptr<SubProcess> subProcess(SubProcess::create(commandLine, environment));
+ subProcesses[field.id] = subProcess;
+
+ string_t version = L"1";
+ subProcess->write({StreamletMsg::VERSION_SUPPORTED, version});
+ subProcess->write({StreamletMsg::WAITING_FOR_VERSION});
+ SubProcess::Message versionMessage = subProcess->read();
+ if (versionMessage.code == StreamletMsg::VERSION_ACCEPTED && versionMessage.parameters[0] == version) {
+ subProcess->write({StreamletMsg::RELATION_START});
+ subProcess->write({StreamletMsg::INPUT_ATTRIBUTE_METADATA, L"path", L"string"});
+ for (string_t alias : field.getAliases()) subProcess->write({StreamletMsg::OUTPUT_ATTRIBUTE_ALIAS, alias});
+ for (int i = 0; i < field.options.size();) subProcess->write({StreamletMsg::OPTION, field.options[i++], field.options[i++]});
+ subProcess->write({StreamletMsg::WAITING_FOR_OUTPUT_ATTRIBUTES_METADATA});
+
+ vector<AttributeMetadata> metadata;
+ while (true) {
+ SubProcess::Message m = subProcess->read();
+ if (m.code == StreamletMsg::OUTPUT_ATTRIBUTE_METADATA) metadata.push_back({m.parameters[0], writer->toTypeId(m.parameters[1])});
+ else if (m.code == StreamletMsg::WAITING_FOR_INPUT_ATTRIBUTES) break;
+ }
+
+ cachedMetadata[field.id] = metadata;
+ return metadata;
+ } else {
+ throw RelpipeWriterException(L"Incompatible exec sub-process version or message: " + versionMessage.toString());
+ }
+ }
+ } else {
+ return {};
+ }
+ }
+
+ virtual ~StreamletAttributeFinder() override {
+ for (auto s : subProcesses) {
+ try {
+ s.second->write({StreamletMsg::RELATION_END});
+ s.second->wait();
+ } catch (...) {
+ std::wcerr << L"Exception caught during closing sub-process #" + std::to_wstring(s.first) + L" and waiting for its end." << std::endl;
+ }
+ }
+ }
+};
+
+const relpipe::writer::string_t StreamletAttributeFinder::SCRIPT_PREFIX = L"__relpipe_in_filesystem_script_";
+
+}
+}
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/StreamletMsg.h Sat Jan 11 18:13:30 2020 +0100
@@ -0,0 +1,88 @@
+// This file was generated from the specification.
+
+#pragma once
+
+#include <map>
+#include <string>
+
+namespace relpipe {
+namespace in {
+namespace filesystem {
+
+class StreamletMsg {
+public:
+
+ static const int VERSION_SUPPORTED;
+ static const int WAITING_FOR_VERSION;
+ static const int VERSION_ACCEPTED;
+ static const int RELATION_START;
+ static const int INPUT_ATTRIBUTE_METADATA;
+ static const int OUTPUT_ATTRIBUTE_ALIAS;
+ static const int OPTION;
+ static const int COMPLETION_REQUEST;
+ static const int COMPLETION;
+ static const int COMPLETION_END;
+ static const int WAITING_FOR_OUTPUT_ATTRIBUTES_METADATA;
+ static const int OUTPUT_ATTRIBUTE_METADATA;
+ static const int WAITING_FOR_INPUT_ATTRIBUTES;
+ static const int INPUT_ATTRIBUTE;
+ static const int WAITING_FOR_OUTPUT_ATTRIBUTES;
+ static const int OUTPUT_ATTRIBUTE;
+ static const int EXECUTOR_ERROR;
+ static const int STREAMLET_ERROR;
+ static const int STREAMLET_WARNING;
+ static const int RELATION_END;
+
+ static std::map<int, std::wstring> getMessageNames() {
+ std::map<int, std::wstring> m;
+
+ m[VERSION_SUPPORTED] = L"VERSION_SUPPORTED";
+ m[WAITING_FOR_VERSION] = L"WAITING_FOR_VERSION";
+ m[VERSION_ACCEPTED] = L"VERSION_ACCEPTED";
+ m[RELATION_START] = L"RELATION_START";
+ m[INPUT_ATTRIBUTE_METADATA] = L"INPUT_ATTRIBUTE_METADATA";
+ m[OUTPUT_ATTRIBUTE_ALIAS] = L"OUTPUT_ATTRIBUTE_ALIAS";
+ m[OPTION] = L"OPTION";
+ m[COMPLETION_REQUEST] = L"COMPLETION_REQUEST";
+ m[COMPLETION] = L"COMPLETION";
+ m[COMPLETION_END] = L"COMPLETION_END";
+ m[WAITING_FOR_OUTPUT_ATTRIBUTES_METADATA] = L"WAITING_FOR_OUTPUT_ATTRIBUTES_METADATA";
+ m[OUTPUT_ATTRIBUTE_METADATA] = L"OUTPUT_ATTRIBUTE_METADATA";
+ m[WAITING_FOR_INPUT_ATTRIBUTES] = L"WAITING_FOR_INPUT_ATTRIBUTES";
+ m[INPUT_ATTRIBUTE] = L"INPUT_ATTRIBUTE";
+ m[WAITING_FOR_OUTPUT_ATTRIBUTES] = L"WAITING_FOR_OUTPUT_ATTRIBUTES";
+ m[OUTPUT_ATTRIBUTE] = L"OUTPUT_ATTRIBUTE";
+ m[EXECUTOR_ERROR] = L"EXECUTOR_ERROR";
+ m[STREAMLET_ERROR] = L"STREAMLET_ERROR";
+ m[STREAMLET_WARNING] = L"STREAMLET_WARNING";
+ m[RELATION_END] = L"RELATION_END";
+
+ return m;
+ }
+
+};
+
+const int StreamletMsg::VERSION_SUPPORTED = 100;
+const int StreamletMsg::WAITING_FOR_VERSION = 101;
+const int StreamletMsg::VERSION_ACCEPTED = 102;
+const int StreamletMsg::RELATION_START = 103;
+const int StreamletMsg::INPUT_ATTRIBUTE_METADATA = 104;
+const int StreamletMsg::OUTPUT_ATTRIBUTE_ALIAS = 105;
+const int StreamletMsg::OPTION = 106;
+const int StreamletMsg::COMPLETION_REQUEST = 107;
+const int StreamletMsg::COMPLETION = 108;
+const int StreamletMsg::COMPLETION_END = 109;
+const int StreamletMsg::WAITING_FOR_OUTPUT_ATTRIBUTES_METADATA = 110;
+const int StreamletMsg::OUTPUT_ATTRIBUTE_METADATA = 111;
+const int StreamletMsg::WAITING_FOR_INPUT_ATTRIBUTES = 112;
+const int StreamletMsg::INPUT_ATTRIBUTE = 113;
+const int StreamletMsg::WAITING_FOR_OUTPUT_ATTRIBUTES = 114;
+const int StreamletMsg::OUTPUT_ATTRIBUTE = 115;
+const int StreamletMsg::EXECUTOR_ERROR = 116;
+const int StreamletMsg::STREAMLET_ERROR = 117;
+const int StreamletMsg::STREAMLET_WARNING = 118;
+const int StreamletMsg::RELATION_END = 120;
+
+}
+}
+}